{"id":"CVE-2022-50998","aliases":[],"url":"https://o3.security/vulnerability/CVE-2022-50998","summary":"Nokogiri before 1.13.9 (CRuby implementation using packaged libraries) bundles libxml2 v2.9.14, which is affected by CVE-2022-40304 (data corruption / double-free from an entity reference…","details":"Nokogiri before 1.13.9 (CRuby implementation using packaged libraries) bundles libxml2 v2.9.14, which is affected by CVE-2022-40304 (data corruption / double-free from an entity reference cycle when entity content is allocated from a dict) and CVE-2022-40303 (integer overflows when parsing with XML_PARSE_HUGE). Nokogiri 1.13.9 upgrades the packaged libxml2 to v2.10.3 to address these issues. Processing crafted XML input may lead to denial of service or memory corruption. (The advisory also references CVE-2022-2309, a NULL pointer dereference via iterwalk/canonicalize, which maintainers determined does not affect Nokogiri users.)","published":"2026-08-25T16:16:44.073","modified":"2026-08-25T16:16:44.073","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/sparklemotion/nokogiri/commit/644a89e080bced793295f61f18aac8cfad6bece2","label":"sparklemotion/nokogiri@644a89e"},"references":[{"type":"WEB","url":"https://github.com/sparklemotion/nokogiri/commit/644a89e080bced793295f61f18aac8cfad6bece2"},{"type":"WEB","url":"https://github.com/sparklemotion/nokogiri/commit/c846986356fc149915a74972bf198abc266bc2c0"},{"type":"WEB","url":"https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-2qc6-mcvw-92cw"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/nokogiri-before-multiple-vulnerabilities-via-libxml2-2"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-08-25T16:16:44.073"}}