Access of Resource Using Incompatible Type ('Type Confusion') Affecting libxslt package, versions <1.1.43-0.3


Severity

Recommended
0.0
low
0
10

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.28% (21st percentile)

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  • Snyk IDSNYK-UBUNTU2604-LIBXSLT-16233404
  • published24 Apr 2026
  • disclosed14 Oct 2025

Introduced: 14 Oct 2025

CVE-2025-11731  (opens in a new tab)
CWE-843  (opens in a new tab)

How to fix?

Upgrade Ubuntu:26.04 libxslt to version 1.1.43-0.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxslt package and not the libxslt package as distributed by Ubuntu. See How to fix? for Ubuntu:26.04 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1