{ "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-2026-31967", "tracking": { "current_release_date": "2026-03-20T09:32:04.677733Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-31967", "initial_release_date": "2026-03-18T19:38:52.169637Z", "revision_history": [ { "date": "2026-03-18T19:38:52.169637Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (3).| References created (2).| CWES updated (1)." }, { "date": "2026-03-18T19:38:53.995661Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-03-18T20:26:12.409043Z", "number": "3", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-18T20:26:15.040604Z", "number": "4", "summary": "NCSC Score updated." }, { "date": "2026-03-18T20:38:59.126717Z", "number": "5", "summary": "Unknown change." }, { "date": "2026-03-19T00:43:18.906927Z", "number": "6", "summary": "Source created.| CVE status created. (valid)| Products connected (2)." }, { "date": "2026-03-19T00:43:27.573543Z", "number": "7", "summary": "NCSC Score updated." }, { "date": "2026-03-19T06:43:12.713803Z", "number": "8", "summary": "Description created for source." }, { "date": "2026-03-19T21:03:42.567591Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-03-20T03:45:48.034217Z", "number": "10", "summary": "CVSS created.| Products connected (3).| Product Identifiers created (3)." }, { "date": "2026-03-20T03:45:51.248681Z", "number": "11", "summary": "NCSC Score updated." }, { "date": "2026-03-20T09:32:03.637190Z", "number": "12", "summary": "Source connected.| CVE status created. (valid)| EPSS created." } ], "status": "interim", "version": "12" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/1.23", "product": { "name": "vers:unknown/1.23", "product_id": "CSAFPID-5859404", "product_identification_helper": { "cpe": "cpe:2.3:a:htslib:htslib:1.23:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/<1.21.1", "product": { "name": "vers:unknown/<1.21.1", "product_id": "CSAFPID-5859402", "product_identification_helper": { "cpe": "cpe:2.3:a:htslib:htslib:*:*:*:*:*:*:*:*" } } }, { "category": "product_version_range", "name": "vers:unknown/>=1.22|<1.22.2", "product": { "name": "vers:unknown/>=1.22|<1.22.2", "product_id": "CSAFPID-5859403", "product_identification_helper": { "cpe": "cpe:2.3:a:htslib:htslib:*:*:*:*:*:*:*:*" } } } ], "category": "product_name", "name": "HTSlib" } ], "category": "vendor", "name": "HTSlib" }, { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-1396815" } } ], "category": "product_name", "name": "htslib" } ], "category": "product_family", "name": "bookworm" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-1396816" } } ], "category": "product_name", "name": "htslib" } ], "category": "product_family", "name": "bullseye" } ], "category": "vendor", "name": "Debian" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/1.23", "product": { "name": "vers:unknown/1.23", "product_id": "CSAFPID-5844846" } }, { "category": "product_version_range", "name": "vers:unknown/<1.21.1", "product": { "name": "vers:unknown/<1.21.1", "product_id": "CSAFPID-5844844" } }, { "category": "product_version_range", "name": "vers:unknown/>=1.22|<1.22.2", "product": { "name": "vers:unknown/>=1.22|<1.22.2", "product_id": "CSAFPID-5844845" } } ], "category": "product_name", "name": "htslib" } ], "category": "vendor", "name": "samtools" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-31967", "cwe": { "id": "CWE-125", "name": "Out-of-bounds Read" }, "notes": [ { "category": "description", "text": "HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. In the `cram_decode_slice()` function called while reading CRAM records, the value of the mate reference id field was not validated. Later use of this value, for example when converting the data to SAM format, could result in the out of bounds array reads when looking up the corresponding reference name. If the array value obtained also happened to be a valid pointer, it would be interpreted as a string and an attempt would be made to write the data as part of the SAM record. This bug may allow information about program state to be leaked. It may also cause a program crash through an attempt to access invalid memory. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.", "title": "cveprojectv5 - https://www.cve.org/CVERecord?id=CVE-2026-31967" }, { "category": "description", "text": "HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. In the `cram_decode_slice()` function called while reading CRAM records, the value of the mate reference id field was not validated. Later use of this value, for example when converting the data to SAM format, could result in the out of bounds array reads when looking up the corresponding reference name. If the array value obtained also happened to be a valid pointer, it would be interpreted as a string and an attempt would be made to write the data as part of the SAM record. This bug may allow information about program state to be leaked. It may also cause a program crash through an attempt to access invalid memory. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.", "title": "nvd - https://nvd.nist.gov/vuln/detail/CVE-2026-31967" }, { "category": "description", "text": "HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. In the `cram_decode_slice()` function called while reading CRAM records, the value of the mate reference id field was not validated. Later use of this value, for example when converting the data to SAM format, could result in the out of bounds array reads when looking up the corresponding reference name. If the array value obtained also happened to be a valid pointer, it would be interpreted as a string and an attempt would be made to write the data as part of the SAM record. This bug may allow information about program state to be leaked. It may also cause a program crash through an attempt to access invalid memory. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-31967" }, { "category": "description", "text": "HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data. In the `cram_decode_slice()` function called while reading CRAM records, the value of the mate reference id field was not validated. Later use of this value, for example when converting the data to SAM format, could result in the out of bounds array reads when looking up the corresponding reference name. If the array value obtained also happened to be a valid pointer, it would be interpreted as a string and an attempt would be made to write the data as part of the SAM record. This bug may allow information about program state to be leaked. It may also cause a program crash through an attempt to access invalid memory. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31967" }, { "category": "other", "text": "0.00014", "title": "EPSS" }, { "category": "other", "text": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N", "title": "CVSSV4" }, { "category": "other", "text": "6.9", "title": "CVSSV4 base score" }, { "category": "other", "text": "4.2", "title": "NCSC Score" }, { "category": "other", "text": "Is related to CWE-129 (Improper Validation of Array Index)", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "Is related to CWE-125 (Out-of-bounds Read)", "title": "NCSC Score top decreasing factors" } ], "product_status": { "known_affected": [ "CSAFPID-5844844", "CSAFPID-5844845", "CSAFPID-5844846", "CSAFPID-1396815", "CSAFPID-1396816", "CSAFPID-5859402", "CSAFPID-5859403", "CSAFPID-5859404" ] }, "references": [ { "category": "external", "summary": "Source - cveprojectv5", "url": "https://www.cve.org/CVERecord?id=CVE-2026-31967" }, { "category": "external", "summary": "Source raw - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/31xxx/CVE-2026-31967.json" }, { "category": "external", "summary": "Source - nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31967" }, { "category": "external", "summary": "Source raw - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31967" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-31967" }, { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31967" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://github.com/samtools/htslib/security/advisories/GHSA-33x5-c6vj-8f2w" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd", "url": "https://github.com/samtools/htslib/commit/9cefb46453ad471e933b8212d4f45920524d3357" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H", "baseScore": 9.1, "baseSeverity": "CRITICAL" }, "products": [ "CSAFPID-1396815", "CSAFPID-1396816", "CSAFPID-5844844", "CSAFPID-5844845", "CSAFPID-5844846", "CSAFPID-5859402", "CSAFPID-5859403", "CSAFPID-5859404" ] } ], "title": "CVE-2026-31967" } ] }