CVE-2025-10911

Publication date 25 September 2025

Last updated 30 January 2026

Ubuntu priority

Cvss 3 Severity Score

Description

A use-after-free vulnerability was found in libxslt while parsing xsl nodes that may lead to the dereference of expired pointers and application crash.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
libxslt	25.10 questing	Vulnerable, fix deferred
	25.04 plucky	Ignored end of life, was needs-triage
	24.04 LTS noble	Vulnerable, fix deferred
	22.04 LTS jammy	Vulnerable, fix deferred
	20.04 LTS focal	Vulnerable, fix deferred
	18.04 LTS bionic	Vulnerable, fix deferred
	16.04 LTS xenial	Vulnerable, fix deferred
	14.04 LTS trusty	Vulnerable, fix deferred

Notes

mdeslaur

as of 2026-01-30, the proposed fix has not been merged yet, but Debian use the proposed patch in 1.1.43-0.3

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
libxslt	Upstream: https://gitlab.gnome.org/GNOME/libxslt/-/merge_requests/77

Severity score breakdown

Parameter	Value
Base score	5.5 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	Required
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H