What’s Vulnerable › Vulnerabilities

CVE-2025-11731: Libxslt: type confusion in exsltfuncresultcompfunction of libxslt

• Severity: low (CVSS 3.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-14 · updated 2026-10-18
• Weakness: CWE-843

Description

A flaw was found in the exsltFuncResultComp() function of libxslt, which handles EXSLT <func:result> elements during stylesheet parsing. Due to improper type handling, the function may treat an XML document node as a regular XML element node, resulting in a type confusion. This can cause unexpected memory reads and potential crashes. While difficult to exploit, the flaw could lead to application instability or denial of service.

Affected products

• Red Hat OpenShift Container Platform 4.18: all versions
• Red Hat Enterprise Linux 10: all versions
• Red Hat Enterprise Linux 7: all versions
• Red Hat Enterprise Linux 8: all versions
• Red Hat Enterprise Linux 9: all versions
• Red Hat Hardened Images: all versions — fixed in 1.1.45-0.1.hum1

How to fix

Upgrade to a fixed version: Red Hat Hardened Images 1.1.45-0.1.hum1. Check the vendor advisory for mitigations.

References

• https://access.redhat.com/errata/RHSA-2026:11015
• https://access.redhat.com/security/cve/CVE-2025-11731
• https://bugzilla.redhat.com/show_bug.cgi?id=2403688
• https://gitlab.gnome.org/GNOME/libxslt/-/issues/151
• https://gitlab.gnome.org/GNOME/libxslt/-/merge_requests/78

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