{ "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-2026-31935", "tracking": { "current_release_date": "2026-04-03T15:37:35.911468Z", "generator": { "date": "2026-02-17T15:00:00Z", "engine": { "name": "V.E.L.M.A", "version": "1.7" } }, "id": "CVE-2026-31935", "initial_release_date": "2026-04-02T15:28:40.327966Z", "revision_history": [ { "date": "2026-04-02T15:28:40.327966Z", "number": "1", "summary": "CVE created.| Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (2).| CWES updated (1)." }, { "date": "2026-04-02T15:28:42.418542Z", "number": "2", "summary": "NCSC Score created." }, { "date": "2026-04-02T15:35:23.928593Z", "number": "3", "summary": "NCSC Score updated." }, { "date": "2026-04-02T15:40:14.384366Z", "number": "4", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| Products connected (2).| References created (2).| CWES updated (1)." }, { "date": "2026-04-02T15:40:16.994641Z", "number": "5", "summary": "NCSC Score updated." }, { "date": "2026-04-02T19:38:56.403878Z", "number": "6", "summary": "Unknown change." }, { "date": "2026-04-03T00:27:38.874203Z", "number": "7", "summary": "Source created.| CVE status created. (valid)| Description created for source.| CVSS created.| References created (4).| CWES updated (1).| Vendor_assessment created." }, { "date": "2026-04-03T00:27:44.231963Z", "number": "8", "summary": "NCSC Score updated." }, { "date": "2026-04-03T12:44:13.873941Z", "number": "9", "summary": "Source created.| CVE status created. (valid)| Description created for source.| Products connected (2)." }, { "date": "2026-04-03T12:44:16.190960Z", "number": "10", "summary": "NCSC Score updated." }, { "date": "2026-04-03T15:37:08.417222Z", "number": "11", "summary": "Source connected.| CVE status created. (valid)| EPSS created." }, { "date": "2026-04-03T15:37:18.449632Z", "number": "12", "summary": "NCSC Score updated." } ], "status": "interim", "version": "12" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-2530884" } } ], "category": "product_name", "name": "suricata" } ], "category": "product_family", "name": "bookworm" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:deb/unknown", "product": { "name": "vers:deb/unknown", "product_id": "CSAFPID-2530885" } } ], "category": "product_name", "name": "suricata" } ], "category": "product_family", "name": "bullseye" } ], "category": "vendor", "name": "Debian" }, { "branches": [ { "branches": [ { "category": "product_version_range", "name": "vers:unknown/<7.0.15", "product": { "name": "vers:unknown/<7.0.15", "product_id": "CSAFPID-5984840" } }, { "category": "product_version_range", "name": "vers:unknown/>=8.0.0|<8.0.4", "product": { "name": "vers:unknown/>=8.0.0|<8.0.4", "product_id": "CSAFPID-5984841" } } ], "category": "product_name", "name": "suricata" } ], "category": "vendor", "name": "OISF" } ] }, "vulnerabilities": [ { "cve": "CVE-2026-31935", "cwe": { "id": "CWE-770", "name": "Allocation of Resources Without Limits or Throttling" }, "notes": [ { "category": "description", "text": "Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, flooding of craft HTTP2 continuation frames can lead to memory exhaustion, usually resulting in the Suricata process being shut down by the operating system. This issue has been patched in versions 7.0.15 and 8.0.4.", "title": "nvd - https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31935" }, { "category": "description", "text": "Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, flooding of craft HTTP2 continuation frames can lead to memory exhaustion, usually resulting in the Suricata process being shut down by the operating system. This issue has been patched in versions 7.0.15 and 8.0.4.", "title": "cveprojectv5 - https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/31xxx/CVE-2026-31935.json" }, { "category": "description", "text": "A flaw was found in Suricata. A remote attacker can exploit this vulnerability by sending a flood of crafted HTTP2 continuation frames. This can lead to memory exhaustion, causing the Suricata process to shut down, resulting in a Denial of Service (DoS).\nImportant: A flaw in Suricata allows a remote attacker to trigger a Denial of Service. By sending a flood of specially crafted HTTP2 continuation frames, an attacker can cause memory exhaustion, leading to the Suricata process shutting down. This vulnerability affects Suricata deployments configured to inspect HTTP2 traffic.", "title": "redhat - https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-31935.json" }, { "category": "description", "text": "Suricata is a network IDS, IPS and NSM engine. Prior to versions 7.0.15 and 8.0.4, flooding of craft HTTP2 continuation frames can lead to memory exhaustion, usually resulting in the Suricata process being shut down by the operating system. This issue has been patched in versions 7.0.15 and 8.0.4.", "title": "debian - https://security-tracker.debian.org/tracker/CVE-2026-31935" }, { "category": "other", "text": "0.0004", "title": "EPSS" }, { "category": "other", "text": "4.6", "title": "NCSC Score" }, { "category": "other", "text": "There is cvss data available from source Redhat, Is related to CWE-400 (Uncontrolled Resource Consumption)", "title": "NCSC Score top increasing factors" }, { "category": "other", "text": "Is related to (a version of) an uncommon product", "title": "NCSC Score top decreasing factors" }, { "category": "details", "text": "Severity: 3\n", "title": "Vendor assessment" } ], "product_status": { "known_affected": [ "CSAFPID-5984840", "CSAFPID-5984841", "CSAFPID-2530884", "CSAFPID-2530885" ] }, "references": [ { "category": "external", "summary": "Source - nvd", "url": "https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-31935" }, { "category": "external", "summary": "Source - cveprojectv5", "url": "https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/31xxx/CVE-2026-31935.json" }, { "category": "external", "summary": "Source - redhat", "url": "https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2026-31935.json" }, { "category": "external", "summary": "Source - debian", "url": "https://security-tracker.debian.org/tracker/CVE-2026-31935" }, { "category": "external", "summary": "Source - first", "url": "https://api.first.org/data/v1/epss?limit=10000&offset=0" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; redhat", "url": "https://github.com/OISF/suricata/security/advisories/GHSA-vxrp-5pg7-7v4x" }, { "category": "external", "summary": "Reference - cveprojectv5; nvd; redhat", "url": "https://redmine.openinfosecfoundation.org/issues/8289" }, { "category": "external", "summary": "Reference - redhat", "url": "https://www.cve.org/CVERecord?id=CVE-2026-31935" }, { "category": "external", "summary": "Reference - redhat", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31935" } ], "scores": [ { "cvss_v3": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "baseScore": 7.5, "baseSeverity": "HIGH" }, "products": [ "CSAFPID-2530884", "CSAFPID-2530885", "CSAFPID-5984840", "CSAFPID-5984841" ] } ], "title": "CVE-2026-31935" } ] }