CVE-2025-7424: Libxslt: type confusion in xmlnode.psvi between stylesheet and source nodes

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-10 · updated 2026-10-12
Weakness: CWE-843

Description

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.

Affected products

Red Hat Enterprise Linux: 6.0, 7.0, 8.0, 9.0, 10.0
Red Hat OpenShift Container Platform 4.18: 4.0
xmlsoft libxslt: all versions

References

https://access.redhat.com/errata/RHBA-2025:12345
https://access.redhat.com/errata/RHSA-2026:11015
https://access.redhat.com/security/cve/CVE-2025-7424
https://bugzilla.redhat.com/show_bug.cgi?id=2379228
https://gitlab.gnome.org/GNOME/libxslt/-/issues/139
http://seclists.org/fulldisclosure/2025/Aug/0
http://seclists.org/fulldisclosure/2025/Jul/30
http://seclists.org/fulldisclosure/2025/Jul/32
http://seclists.org/fulldisclosure/2025/Jul/33
http://seclists.org/fulldisclosure/2025/Jul/35
http://seclists.org/fulldisclosure/2025/Jul/37
http://www.openwall.com/lists/oss-security/2025/07/11/2

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