{"id":"CVE-2026-113351","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-113351","summary":"libexpat 2.7.2 through 2.9.0 Denial of Service via XML_ParserReset","details":"libexpat 2.7.2 through 2.9.0 contains a denial of service vulnerability because XML_ParserReset zeroes the direct byte count but never offsets tracked heap allocations. Attackers can submit a large XML document so later documents on the same reset parser fail with XML_ERROR_NO_MEMORY until it is recreated.","published":"2026-10-20T10:41:37.468Z","modified":"2026-10-28T02:31:07.685261374Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/libexpat/libexpat/pull/1431","label":"libexpat/libexpat#1431"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/113xxx/CVE-2026-113351.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113351"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/libexpat-2.7.2-through-2.9.0-denial-of-service-via-xml-parserreset"},{"type":"FIX","url":"https://github.com/libexpat/libexpat/pull/1431"},{"type":"PACKAGE","url":"https://github.com/libexpat/libexpat"},{"type":"ARTICLE","url":"https://github.com/libexpat/libexpat/blob/a76b1174c1ea52abb639a4c69d52b630a8a106a2/expat/lib/xmlparse.c#L1560"},{"type":"ARTICLE","url":"https://github.com/libexpat/libexpat/blob/a76b1174c1ea52abb639a4c69d52b630a8a106a2/expat/lib/xmlparse.c#L860-L884"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-28T02:31:07.685261374Z"}}