High [CVE-2025-7424] Libxslt: type confusion in xmlnode.psvi between stylesheet and source nodes
This high-severity Red Hat Linux advisory covers CVE-2025-7424 affecting Red Hat Enterprise Linux 10, Red Hat Hardened Images, Red Hat Enterprise Linux 6.
Android app · Google Play
Monitor future Red Hat Linux CVEs from your phone.
Choose a whole vendor or a precise platform, then receive matching security advisories by phone notification, email, or both. Coverage follows 32 official vendor sources and 160+ reviewed platform categories.
Summary
A flaw was found in the libxslt library. The same memory field, psvi, is used for both stylesheet and input data, which can lead to type confusion during XML transformations.
This vulnerability allows an attacker to crash the application or corrupt memory. In some cases, it may lead to denial of service or unexpected behavior.
This type confusion vulnerability in libxslt has been rated as Important due to its potential to corrupt memory and crash applications during XML transformations. The flaw stems from unsafe reuse of the psvi field between stylesheet and input nodes, causing the program to misinterpret internal data types.
When malicious XSLT stylesheets are processed, this confusion can lead to memory corruption or denial-of-service. Given libxslt’s widespread use in web browsers, server-side applications, and XML processing pipelines, the impact of this vulnerability can extend to user-facing services and backend systems alike.
Red Hat severity: Important — CVSS 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). Weakness: CWE-843.
Affected Red Hat products: Red Hat Enterprise Linux 10; Red Hat Hardened Images; Red Hat Enterprise Linux 6. Red Hat lists Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; Red Hat OpenShift Container Platform 4 as not affected.
Will not fix / out of support: Red Hat Enterprise Linux 6.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
- libxml2-0:2.12.5-8.el10_0
- libxslt-0:1.1.39-8.el10_0
- libxslt-main-1.1.45-0.1.hum1
- RHBA-2025:12345
- RHSA-2026:11015
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Discussion(0)
No comments yet. Share field notes, upgrade gotchas, or questions — verify against the vendor advisory before acting on community advice.
Sign in to join the discussion.