{"id":"CVE-2026-86137","state":"PUBLISHED","title":"In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.","description":"In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp.","publishedAt":"2026-09-05T04:19:30.745Z","updatedAt":"2026-09-14T13:50:50.073Z","severity":{"score":2.9,"label":"Low","version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","source":"mitre"},"assigner":"mitre","products":["xmlsoft libxml2"],"affected":[{"vendor":"xmlsoft","product":"libxml2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.15.4","versionType":"semver"}]}],"references":["https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4","https://github.com/GNOME/libxml2/commit/76fe08d97de88bfaef2f7d5cd27f11954cc5bee2","https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1099"],"weaknesses":["CWE-125"],"ingestedAt":"2026-10-29T20:13:26.108Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/86xxx/CVE-2026-86137.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-86137","state":"PUBLISHED","datePublished":"2026-09-05T04:19:30.745Z","dateUpdated":"2026-09-14T13:50:50.073Z","assignerShortName":"mitre","assignerOrgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateReserved":"2026-09-05T04:19:30.345Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"In libxml2 before 2.15.4, xmlFAParsePosCharGroup has an out-of-bounds read, aka an out-of-bounds read in the NXT macro in xmlregexp."}],"affected":[{"vendor":"xmlsoft","product":"libxml2","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThan":"2.15.4","versionType":"semver"}]}],"references":[{"url":"https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"},{"url":"https://github.com/GNOME/libxml2/commit/76fe08d97de88bfaef2f7d5cd27f11954cc5bee2"},{"url":"https://gitlab.gnome.org/GNOME/libxml2/-/work_items/1099"}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":2.9,"baseSeverity":"LOW","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds Read","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"mitre","orgId":"8254265b-2729-46b6-b9e3-3dfca2d5bfca","dateUpdated":"2026-09-05T04:19:30.745Z"},"x_generator":{"engine":"CVE-Request-form 0.0.1"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*","versionEndExcluding":"2.15.4"}]}]}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2026-86137","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-09-14T13:26:45.455597Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-14T13:50:50.073Z"}}]}}}