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+---
+gem: nokogiri
+ghsa: mrxw-mxhj-p664
+url: https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-mrxw-mxhj-p664
+title: Nokogiri updates packaged libxslt to v1.1.43 to resolve multiple CVEs
+date: 2025-03-14
+description: |
+  ## Summary
+
+  Nokogiri v1.18.4 upgrades its dependency libxslt to
+  [v1.1.43](https://gitlab.gnome.org/GNOME/libxslt/-/releases/v1.1.43).
+
+  libxslt v1.1.43 resolves:
+
+  - CVE-2025-24855: Fix use-after-free of XPath context node
+  - CVE-2024-55549: Fix UAF related to excluded namespaces
+
+  ## Impact
+
+  ### CVE-2025-24855
+
+  - "Use-after-free due to xsltEvalXPathStringNs leaking xpathCtxt->node"
+  - MITRE has rated this 7.8 High CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
+  - Upstream report: https://gitlab.gnome.org/GNOME/libxslt/-/issues/128
+  - NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2025-24855
+
+  ### CVE-2024-55549
+
+  - "Use-after-free related to excluded result prefixes"
+  - MITRE has rated this 7.8 High CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H
+  - Upstream report: https://gitlab.gnome.org/GNOME/libxslt/-/issues/127
+  - NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2024-55549
+cvss_v3: 7.8
+patched_versions:
+  - ">= 1.18.4"
+related:
+  url:
+    - https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-mrxw-mxhj-p664
+    - https://gitlab.gnome.org/GNOME/libxslt/-/issues/127
+    - https://gitlab.gnome.org/GNOME/libxslt/-/issues/128
+    - https://github.com/advisories/GHSA-mrxw-mxhj-p664
+  cve:
+    - https://nvd.nist.gov/vuln/detail/CVE-2024-55549
+    - https://nvd.nist.gov/vuln/detail/CVE-2025-24855