CVE-2022-24836

Nokogiri is an open source XML and HTML library for Ruby. Nokogiri `< v1.13.4` contains an inefficient regular expression that is susceptible to excessive backtracking when attempting to detect encoding in HTML documents. Users are advised to upgrade to Nokogiri `>= 1.13.4`. There are no known workarounds for this issue.

• CWE-400
• CWE-1333
• CWE-1333

• http://seclists.org/fulldisclosure/2022/Dec/23Mailing List, Third Party Advisory
• https://github.com/sparklemotion/nokogiri/commit/e444525ef1634b675cd1cf52d39f4320ef0aecfdPatch, Third Party Advisory
• https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-crjr-9rc5-ghw8Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2022/05/msg00013.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2022/10/msg00018.htmlMailing List, Third Party Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6DHCOWMA5PQTIQIMDENA7R2Y5BDYAIYM/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OUPLBUZVM4WPFSXBEP2JS3R6LMKRTLFC/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMDCWRQXJQ3TFSETPCEFMQ6RR6ME5UA3/
• https://security.gentoo.org/glsa/202208-29Third Party Advisory
• https://support.apple.com/kb/HT213532Third Party Advisory
• http://seclists.org/fulldisclosure/2022/Dec/23Mailing List, Third Party Advisory
• https://github.com/sparklemotion/nokogiri/commit/e444525ef1634b675cd1cf52d39f4320ef0aecfdPatch, Third Party Advisory
• https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-crjr-9rc5-ghw8Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2022/05/msg00013.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2022/10/msg00018.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2024/09/msg00010.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6DHCOWMA5PQTIQIMDENA7R2Y5BDYAIYM/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OUPLBUZVM4WPFSXBEP2JS3R6LMKRTLFC/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMDCWRQXJQ3TFSETPCEFMQ6RR6ME5UA3/
• https://security.gentoo.org/glsa/202208-29Third Party Advisory
• https://support.apple.com/kb/HT213532Third Party Advisory

Published

Apr 11, 2022

Last Modified

Jun 17, 2026

Status

Modified

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