{ "document": { "category": "csaf_base", "csaf_version": "2.0", "distribution": { "tlp": { "label": "WHITE" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "The Netherlands Cyber Security Center (henceforth: NCSC-NL) maintains this portal to enhance access to its information and vulnerabilities. The use of this information is subject to the following terms and conditions:\n\nThe vulnerabilities disclosed in this portal are gathered by NCSC-NL from a variety of open sources, which the user can retrieve from other platforms. NCSC-NL makes every reasonable effort to ensure that the content of this portal is kept up to date, and that it is accurate and complete. Nevertheless, NCSC-NL cannot entirely rule out the possibility of errors, and therefore cannot give any warranty in respect of its completeness, accuracy or real-time keeping up-to-date. NCSC-NL does not control nor guarantee the accuracy, relevance, timeliness or completeness of information obtained from these external sources. The vulnerabilities disclosed in this portal are intended solely for the convenience of professional parties to take appropriate measures to manage the risks posed to the cybersecurity. No rights can be derived from the information provided therein.\n\nNCSC-NL and the Kingdom of the Netherlands assume no legal liability or responsibility for any damage resulting from either the use or inability of use of the vulnerabilities disclosed in this portal. This includes damage resulting from the inaccuracy of incompleteness of the information contained in it.\nThe information on this page is subject to Dutch law. All disputes related to or arising from the use of this portal regarding the disclosure of vulnerabilities will be submitted to the competent court in The Hague. This choice of means also applies to the court in summary proceedings." } ], "publisher": { "category": "coordinator", "contact_details": "cert@ncsc.nl", "name": "National Cyber Security Centre", "namespace": "https://www.ncsc.nl/" }, "title": "CVE-2026-26981", "tracking": { "current_release_date": "2026-03-27T19:12:07.712870Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-26981", "initial_release_date": "2026-02-24T03:25:14.116171Z", "revision_history": [ { "date": "2026-02-24T03:25:14.116171Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (3).| CWES updated (1)." }, { "date": "2026-02-24T03:25:22.252659Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-02-24T03:38:39.798252Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products created (2).| References created (3).| CWES updated (1)." }, { "date": "2026-02-24T03:38:42.735529Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-02-24T07:35:12.954914Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-02-24T14:12:03.248409Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| EPSS created." }, { "date": "2026-02-24T14:12:05.436008Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-02-24T20:38:41.493948Z", "number": "8", "summary": "Unknown change." }, { "date": "2026-02-24T20:38:43.480773Z", "number": "9", "summary": "NCSC Score updated." }, { "date": "2026-02-25T00:21:43.303684Z", "number": "10", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (36).| Products created (4).| References created (5).| CWES updated (1)." }, { "date": "2026-02-25T00:21:56.170672Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-02-25T00:28:12.717419Z", "number": "12", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (10).| Product Identifiers created (5).| Product Remediations created (10).| References created (5).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-02-25T00:43:34.852109Z", "number": "13", "summary": "Source created.| CVE status created. (valid)| Description created for source.| Products connected (2)." }, { "date": "2026-02-25T18:27:44.536194Z", "number": "14", "summary": "Products created (2).| Product Identifiers created (2).| Exploits created (1)." }, { "date": "2026-02-25T18:27:48.083721Z", "number": "15", "summary": "NCSC Score updated." }, { "date": "2026-02-27T12:11:06.827494Z", "number": "16", "summary": "Products connected (49).| Products created (10).| Products removed (4)." }, { "date": "2026-02-27T12:11:19.687768Z", "number": "17", "summary": "NCSC Score updated." }, { "date": "2026-02-28T06:27:18.939581Z", "number": "18", "summary": "Products connected (4).| Products removed (59)." }, { "date": "2026-02-28T16:07:39.170651Z", "number": "19", "summary": "Products connected (59).| Products removed (4)." }, { "date": "2026-03-20T09:42:55.928384Z", "number": "20", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-03-27T10:17:45.733274Z", "number": "21", "summary": "Products connected (4).| Products removed (19)." } ], "status": "interim", "version": "21" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/>=3.3.0|<3.3.7", "product": { "name": "vers:unknown/>=3.3.0|<3.3.7", "product_id": "CSAFPID-5707903", "product_identification_helper": { "cpe": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=3.4.0|<3.4.5", "product": { "name": "vers:unknown/>=3.4.0|<3.4.5", "product_id": "CSAFPID-5707904", "product_identification_helper": { "cpe": "cpe:2.3:a:openexr:openexr:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.0", "product": { "name": "vers:unknown/v3.3.0", "product_id": "CSAFPID-3767359" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.0-rc2", "product": { "name": "vers:unknown/v3.3.0-rc2", "product_id": "CSAFPID-3767362" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.1", "product": { "name": "vers:unknown/v3.3.1", "product_id": "CSAFPID-3767363" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.1-rc", "product": { "name": "vers:unknown/v3.3.1-rc", "product_id": "CSAFPID-3767364" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2", "product": { "name": "vers:unknown/v3.3.2", "product_id": "CSAFPID-3767365" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2-rc", "product": { "name": "vers:unknown/v3.3.2-rc", "product_id": "CSAFPID-3767366" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2-rc2", "product": { "name": "vers:unknown/v3.3.2-rc2", "product_id": "CSAFPID-3767367" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2-rc3", "product": { "name": "vers:unknown/v3.3.2-rc3", "product_id": "CSAFPID-3767368" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2-rc4", "product": { "name": "vers:unknown/v3.3.2-rc4", "product_id": "CSAFPID-3767369" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.3", "product": { "name": "vers:unknown/v3.3.3", "product_id": "CSAFPID-5258486" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.3-rc", "product": { "name": "vers:unknown/v3.3.3-rc", "product_id": "CSAFPID-3767370" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.3-rc1", "product": { "name": "vers:unknown/v3.3.3-rc1", "product_id": "CSAFPID-5258487" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.4", "product": { "name": "vers:unknown/v3.3.4", "product_id": "CSAFPID-5258488" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.4-rc", "product": { "name": "vers:unknown/v3.3.4-rc", "product_id": "CSAFPID-5258489" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.5", "product": { "name": "vers:unknown/v3.3.5", "product_id": "CSAFPID-5258490" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.5-rc", "product": { "name": "vers:unknown/v3.3.5-rc", "product_id": "CSAFPID-5258491" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.5-rc3", "product": { "name": "vers:unknown/v3.3.5-rc3", "product_id": "CSAFPID-5258492" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6", "product": { "name": "vers:unknown/v3.3.6", "product_id": "CSAFPID-5735048" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6-rc", "product": { "name": "vers:unknown/v3.3.6-rc", "product_id": "CSAFPID-5258493" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6-rc2", "product": { "name": "vers:unknown/v3.3.6-rc2", "product_id": "CSAFPID-5258494" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6-rc3", "product": { "name": "vers:unknown/v3.3.6-rc3", "product_id": "CSAFPID-5258495" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6-rc4", "product": { "name": "vers:unknown/v3.3.6-rc4", "product_id": "CSAFPID-5258496" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.7-rc", "product": { "name": "vers:unknown/v3.3.7-rc", "product_id": "CSAFPID-5735049" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.7-rc2", "product": { "name": "vers:unknown/v3.3.7-rc2", "product_id": "CSAFPID-5735050" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.7-rc3", "product": { "name": "vers:unknown/v3.3.7-rc3", "product_id": "CSAFPID-5735051" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.0", "product": { "name": "vers:unknown/v3.4.0", "product_id": "CSAFPID-5442823" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.1", "product": { "name": "vers:unknown/v3.4.1", "product_id": "CSAFPID-5442825" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.1-rc", "product": { "name": "vers:unknown/v3.4.1-rc", "product_id": "CSAFPID-5442826" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.1-rc2", "product": { "name": "vers:unknown/v3.4.1-rc2", "product_id": "CSAFPID-5442827" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.2", "product": { "name": "vers:unknown/v3.4.2", "product_id": "CSAFPID-5442828" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.2-rc", "product": { "name": "vers:unknown/v3.4.2-rc", "product_id": "CSAFPID-5442829" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.2-rc2", "product": { "name": "vers:unknown/v3.4.2-rc2", "product_id": "CSAFPID-5442830" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.3", "product": { "name": "vers:unknown/v3.4.3", "product_id": "CSAFPID-5735052" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.3-rc", "product": { "name": "vers:unknown/v3.4.3-rc", "product_id": "CSAFPID-5442831" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.3-rc2", "product": { "name": "vers:unknown/v3.4.3-rc2", "product_id": "CSAFPID-5442832" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.3-rc3", "product": { "name": "vers:unknown/v3.4.3-rc3", "product_id": "CSAFPID-5735053" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.4", "product": { "name": "vers:unknown/v3.4.4", "product_id": "CSAFPID-5735054" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.4-rc", "product": { "name": "vers:unknown/v3.4.4-rc", "product_id": "CSAFPID-5735055" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.4-rc2", "product": { "name": "vers:unknown/v3.4.4-rc2", "product_id": "CSAFPID-5735056" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.5-rc", "product": { "name": "vers:unknown/v3.4.5-rc", "product_id": "CSAFPID-5735057" } } ], "category": "product_name", "name": "OpenEXR" } ], "category": "vendor", "name": "OpenEXR" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-3020246" } } ], "category": "product_name", "name": "OpenEXR" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 6" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-3020248" } } ], "category": "product_name", "name": "OpenEXR" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 7" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-3020250" } } ], "category": "product_name", "name": "OpenEXR" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 8" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/10", "product": { "name": "vers:rpm/10", "product_id": "CSAFPID-2858634", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:10" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/6", "product": { "name": "vers:rpm/6", "product_id": "CSAFPID-1439321", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:6" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 6" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/7", "product": { "name": "vers:rpm/7", "product_id": "CSAFPID-1439315", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:7" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 7" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/8", "product": { "name": "vers:rpm/8", "product_id": "CSAFPID-1439317", "product_identification_helper": { "cpe": "cpe:/a:redhat:enterprise_linux:8" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 8" }, { "branches": [ { "category": "product_version_range", "name": "vers:rpm/9", "product": { "name": "vers:rpm/9", "product_id": "CSAFPID-1439319", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:9" } } } ], "category": "product_name", "name": "Red Hat Enterprise Linux 9" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": "vers:rpm/unknown", "product_id": "CSAFPID-3020244" } } ], "category": "product_name", "name": "openexr" } ], "category": "product_family", "name": "Red Hat Enterprise Linux 10" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:rpm/unknown", "product": { "name": 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"branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/*", "product": { "name": "vers:deb/*", "product_id": "CSAFPID-1408025" } } ], "category": "product_name", "name": "openexr" } ], "category": "product_family", "name": "bullseye" } ], "category": "vendor", "name": "Debian" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/v3.3.0", "product": { "name": "vers:unknown/v3.3.0", "product_id": "CSAFPID-3767342" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.0-rc2", "product": { "name": "vers:unknown/v3.3.0-rc2", "product_id": "CSAFPID-3767345" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.1", "product": { "name": "vers:unknown/v3.3.1", "product_id": "CSAFPID-3767346" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.1-rc", "product": { "name": "vers:unknown/v3.3.1-rc", "product_id": "CSAFPID-3767347" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2", "product": { "name": "vers:unknown/v3.3.2", "product_id": "CSAFPID-3767348" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2-rc", "product": { "name": "vers:unknown/v3.3.2-rc", "product_id": "CSAFPID-3767349" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2-rc2", "product": { "name": "vers:unknown/v3.3.2-rc2", "product_id": "CSAFPID-3767350" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2-rc3", "product": { "name": "vers:unknown/v3.3.2-rc3", "product_id": "CSAFPID-3767351" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.2-rc4", "product": { "name": "vers:unknown/v3.3.2-rc4", "product_id": "CSAFPID-3767352" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.3", "product": { "name": "vers:unknown/v3.3.3", "product_id": "CSAFPID-5181410" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.3-rc", "product": { "name": "vers:unknown/v3.3.3-rc", "product_id": "CSAFPID-3767353" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.3-rc1", "product": { "name": "vers:unknown/v3.3.3-rc1", "product_id": "CSAFPID-5181411" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.4", "product": { "name": "vers:unknown/v3.3.4", "product_id": "CSAFPID-5181412" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.4-rc", "product": { "name": "vers:unknown/v3.3.4-rc", "product_id": "CSAFPID-5181413" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.5", "product": { "name": "vers:unknown/v3.3.5", "product_id": "CSAFPID-5181414" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.5-rc", "product": { "name": "vers:unknown/v3.3.5-rc", "product_id": "CSAFPID-5181415" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.5-rc3", "product": { "name": "vers:unknown/v3.3.5-rc3", "product_id": "CSAFPID-5181416" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6", "product": { "name": "vers:unknown/v3.3.6", "product_id": "CSAFPID-5567473" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6-rc", "product": { "name": "vers:unknown/v3.3.6-rc", "product_id": "CSAFPID-5181417" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6-rc2", "product": { "name": "vers:unknown/v3.3.6-rc2", "product_id": "CSAFPID-5181418" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6-rc3", "product": { "name": "vers:unknown/v3.3.6-rc3", "product_id": "CSAFPID-5181419" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.6-rc4", "product": { "name": "vers:unknown/v3.3.6-rc4", "product_id": "CSAFPID-5181420" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.7-rc", "product": { "name": "vers:unknown/v3.3.7-rc", "product_id": "CSAFPID-5700202" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.7-rc2", "product": { "name": "vers:unknown/v3.3.7-rc2", "product_id": "CSAFPID-5700203" } }, { "category": "product_version_range", "name": "vers:unknown/v3.3.7-rc3", "product": { "name": "vers:unknown/v3.3.7-rc3", "product_id": "CSAFPID-5700204" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.0", "product": { "name": "vers:unknown/v3.4.0", "product_id": "CSAFPID-5181421" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.1", "product": { "name": "vers:unknown/v3.4.1", "product_id": "CSAFPID-5181422" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.1-rc", "product": { "name": "vers:unknown/v3.4.1-rc", "product_id": "CSAFPID-5181423" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.1-rc2", "product": { "name": "vers:unknown/v3.4.1-rc2", "product_id": "CSAFPID-5181424" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.2", "product": { "name": "vers:unknown/v3.4.2", "product_id": "CSAFPID-5181425" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.2-rc", "product": { "name": "vers:unknown/v3.4.2-rc", "product_id": "CSAFPID-5181426" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.2-rc2", "product": { "name": "vers:unknown/v3.4.2-rc2", "product_id": "CSAFPID-5181427" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.3", "product": { "name": "vers:unknown/v3.4.3", "product_id": "CSAFPID-5565791" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.3-rc", "product": { "name": "vers:unknown/v3.4.3-rc", "product_id": "CSAFPID-5181428" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.3-rc2", "product": { "name": "vers:unknown/v3.4.3-rc2", "product_id": "CSAFPID-5181429" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.3-rc3", "product": { "name": "vers:unknown/v3.4.3-rc3", "product_id": "CSAFPID-5565792" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.4", "product": { "name": "vers:unknown/v3.4.4", "product_id": "CSAFPID-5565793" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.4-rc", "product": { "name": "vers:unknown/v3.4.4-rc", "product_id": "CSAFPID-5565794" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.4-rc2", "product": { "name": "vers:unknown/v3.4.4-rc2", "product_id": "CSAFPID-5565795" } }, { "category": "product_version_range", "name": "vers:unknown/v3.4.5-rc", "product": { "name": "vers:unknown/v3.4.5-rc", "product_id": "CSAFPID-5700205" } } ], "category": "product_name", "name": "openexr" } ], "category": "vendor", "name": "academysoftwarefoundation" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-26981", "cwe": { "id": "CWE-195", "name": "Signed to Unsigned Conversion Error" }, "notes": [ { "category": "description", "text": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the `istream_nonparallel_read` function in `ImfContextInit.cpp` when parsing a malformed EXR file through a memory-mapped `IStream`. A signed integer subtraction produces a negative value that is implicitly converted to `size_t`, resulting in a massive length being passed to `memcpy`. Versions 3.3.7 and 3.4.5 contain a patch.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-26981" }, { "category": "description", "text": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the `istream_nonparallel_read` function in `ImfContextInit.cpp` when parsing a malformed EXR file through a memory-mapped `IStream`. A signed integer subtraction produces a negative value that is implicitly converted to `size_t`, resulting in a massive length being passed to `memcpy`. Versions 3.3.7 and 3.4.5 contain a patch.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-26981" }, { "category": "description", "text": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the `istream_nonparallel_read` function in `ImfContextInit.cpp` when parsing a malformed EXR file through a memory-mapped `IStream`. A signed integer subtraction produces a negative value that is implicitly converted to `size_t`, resulting in a massive length being passed to `memcpy`. Versions 3.3.7 and 3.4.5 contain a patch.", "title": "osv - https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-26981.json?alt=media" }, { "category": "description", "text": "A flaw was found in OpenEXR. A remote attacker could exploit a heap-buffer-overflow vulnerability in the `istream_nonparallel_read` function by tricking a user into opening a specially crafted EXR file. This occurs when a signed integer subtraction results in a negative value that is then converted to a large unsigned size, leading to an out-of-bounds read during a memory copy operation. Successful exploitation of this vulnerability could lead to a denial of service.\n```\nThe vulnerable code was introduced in OpenEXR 3.3.0 via commit https://github.com/AcademySoftwareFoundation/openexr/commit/c3e212e9c76c4d174f5624564f9103dc49ca1fd8.\nOpenEXR 1.x (shipped in RHEL 6 and RHEL 7) and OpenEXR 2.x (shipped in RHEL 8) do not include the affected context implementation and are therefore not impacted. RHEL 9, RHEL 10 and RHIVOS-2 ship OpenEXR 3.1.x versions, which predate the introduction of the vulnerable code path and are also not affected.\n```\n```\nAditionally, Starting with OpenEXR 3.x, IlmBase was split out into a separate project named Imath. Imath provides math and numerical types, while OpenEXR contains all EXR file parsing logic.\nThis vulnerability exists within OpenEXR’s file parsing logic and does not affect the separate IlmBase or Imath libraries, which contain only mathematical and utility components and no file decoding functionality\n```", "title": "redhat - https://access.redhat.com/security/cve/CVE-2026-26981" }, { "category": "description", "text": "OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.3.0 through 3.3.6 and 3.4.0 through 3.4.4, a heap-buffer-overflow (OOB read) occurs in the `istream_nonparallel_read` function in `ImfContextInit.cpp` when parsing a malformed EXR file through a memory-mapped `IStream`. A signed integer subtraction produces a negative value that is implicitly converted to `size_t`, resulting in a massive length being passed to `memcpy`. Versions 3.3.7 and 3.4.5 contain a patch.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-26981" }, { "category": "other", "text": "0.00045", "title": "EPSS" }, { "category": "other", "text": "4.2", "title": "NCSC Score" }, { "category": "other", "text": "Is related to CWE-191 (Integer Underflow (Wrap or Wraparound))", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "There is exploit data available from source Nvd, Is related to (a version of) an uncommon product", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 2\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-5686274", "CSAFPID-5686275", "CSAFPID-3767342", "CSAFPID-3767345", "CSAFPID-3767346", "CSAFPID-3767347", "CSAFPID-3767348", "CSAFPID-3767349", "CSAFPID-3767350", "CSAFPID-3767351", "CSAFPID-3767352", "CSAFPID-3767353", "CSAFPID-5181410", "CSAFPID-5181411", "CSAFPID-5181412", "CSAFPID-5181413", "CSAFPID-5181414", "CSAFPID-5181415", "CSAFPID-5181416", "CSAFPID-5181417", "CSAFPID-5181418", "CSAFPID-5181419", "CSAFPID-5181420", "CSAFPID-5181421", "CSAFPID-5181422", "CSAFPID-5181423", "CSAFPID-5181424", "CSAFPID-5181425", "CSAFPID-5181426", "CSAFPID-5181427", "CSAFPID-5181428", "CSAFPID-5181429", "CSAFPID-5565791", "CSAFPID-5565792", "CSAFPID-5565793", "CSAFPID-5565794", "CSAFPID-5565795", "CSAFPID-5567473", "CSAFPID-5707903", "CSAFPID-5707904", "CSAFPID-3767359", "CSAFPID-3767362", "CSAFPID-3767363", "CSAFPID-3767364", "CSAFPID-3767365", "CSAFPID-3767366", "CSAFPID-3767367", "CSAFPID-3767368", "CSAFPID-3767369", "CSAFPID-3767370", "CSAFPID-5258486", "CSAFPID-5258487", "CSAFPID-5258488", "CSAFPID-5258489", "CSAFPID-5258490", "CSAFPID-5258491", "CSAFPID-5258492", "CSAFPID-5258493", "CSAFPID-5258494", "CSAFPID-5258495", "CSAFPID-5258496", "CSAFPID-5442823", "CSAFPID-5442825", "CSAFPID-5442826", "CSAFPID-5442827", "CSAFPID-5442828", "CSAFPID-5442829", "CSAFPID-5442830", "CSAFPID-5442831", "CSAFPID-5442832", "CSAFPID-5735048", "CSAFPID-5735049", "CSAFPID-5735050", "CSAFPID-5735051", "CSAFPID-5735052", "CSAFPID-5735053", "CSAFPID-5735054", "CSAFPID-5735055", "CSAFPID-5735056", "CSAFPID-5735057", "CSAFPID-5700202", "CSAFPID-5700203", "CSAFPID-5700204", "CSAFPID-5700205" ], "known_not_affected": [ "CSAFPID-1439315", "CSAFPID-1439317", "CSAFPID-1439319", "CSAFPID-1439321", "CSAFPID-2858634", "CSAFPID-3020244", "CSAFPID-3020246", "CSAFPID-3020248", "CSAFPID-3020250", "CSAFPID-3020251", "CSAFPID-1408025", "CSAFPID-3021532" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26981" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-26981" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-26981" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/26xxx/CVE-2026-26981.json" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-26981" }, { "category": "external", "summary": "Source raw - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Source - osv", "url": "https://www.googleapis.com/download/storage/v1/b/osv-vulnerabilities/o/GIT%2FCVE-2026-26981.json?alt=media" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/security/cve/CVE-2026-26981" }, { "category": "external", "summary": "Source raw - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-26981.json" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-26981" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://github.com/AcademySoftwareFoundation/openexr/commit/6bb2ddf1068573d073edf81270a015b38cc05cef" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://github.com/AcademySoftwareFoundation/openexr/commit/d2be382758adc3e9ab83a3de35138ec28d93ebd8" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; osv; redhat", "url": "https://github.com/AcademySoftwareFoundation/openexr/security/advisories/GHSA-q6vj-wxvf-5m8c" }, { "category": "external", "summary": "Reference - osv", "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26981.json" }, { "category": "external", "summary": "Reference - osv; redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-26981" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-26981" } ], "remediations": [ { "category": "mitigation", "details": "No mitigation is currently available that meets Red Hat Product Security's standards for usability, deployment, applicability, or stability.", "product_ids": [ "CSAFPID-1439315", "CSAFPID-1439317", "CSAFPID-1439319", "CSAFPID-1439321", "CSAFPID-2858634", "CSAFPID-3020244", "CSAFPID-3020246", "CSAFPID-3020248", "CSAFPID-3020250", "CSAFPID-3020251" ] } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H", "baseScore": 6.5, "baseSeverity": "MEDIUM" }, "products": [ "CSAFPID-3767342", "CSAFPID-3767345", "CSAFPID-3767346", "CSAFPID-3767347", "CSAFPID-3767348", "CSAFPID-3767349", "CSAFPID-3767350", "CSAFPID-3767351", "CSAFPID-3767352", "CSAFPID-3767353", "CSAFPID-3767359", "CSAFPID-3767362", "CSAFPID-3767363", "CSAFPID-3767364", "CSAFPID-3767365", "CSAFPID-3767366", "CSAFPID-3767367", "CSAFPID-3767368", "CSAFPID-3767369", "CSAFPID-3767370", "CSAFPID-5181410", "CSAFPID-5181411", "CSAFPID-5181412", "CSAFPID-5181413", "CSAFPID-5181414", "CSAFPID-5181415", "CSAFPID-5181416", "CSAFPID-5181417", "CSAFPID-5181418", "CSAFPID-5181419", "CSAFPID-5181420", "CSAFPID-5181421", "CSAFPID-5181422", "CSAFPID-5181423", "CSAFPID-5181424", "CSAFPID-5181425", "CSAFPID-5181426", "CSAFPID-5181427", "CSAFPID-5181428", "CSAFPID-5181429", "CSAFPID-5258486", "CSAFPID-5258487", "CSAFPID-5258488", "CSAFPID-5258489", "CSAFPID-5258490", "CSAFPID-5258491", "CSAFPID-5258492", "CSAFPID-5258493", "CSAFPID-5258494", "CSAFPID-5258495", "CSAFPID-5258496", "CSAFPID-5442823", "CSAFPID-5442825", "CSAFPID-5442826", "CSAFPID-5442827", "CSAFPID-5442828", "CSAFPID-5442829", "CSAFPID-5442830", "CSAFPID-5442831", "CSAFPID-5442832", "CSAFPID-5565791", "CSAFPID-5565792", "CSAFPID-5565793", "CSAFPID-5565794", "CSAFPID-5565795", "CSAFPID-5567473", "CSAFPID-5686274", "CSAFPID-5686275", "CSAFPID-5700202", "CSAFPID-5700203", "CSAFPID-5700204", "CSAFPID-5700205", "CSAFPID-5707903", "CSAFPID-5707904", "CSAFPID-5735048", "CSAFPID-5735049", "CSAFPID-5735050", "CSAFPID-5735051", "CSAFPID-5735052", "CSAFPID-5735053", "CSAFPID-5735054", "CSAFPID-5735055", "CSAFPID-5735056", "CSAFPID-5735057" ] } ], "title": "CVE-2026-26981" } ] }