CVE-2025-11731

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.

CVSS v3.1 Score

3.1

LOW

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L

Weakness Type (CWE)

CWE-843 CWE-843

References

Other 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

Frequently Asked Questions

What is CVE-2025-11731? +

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. It has a CVSS v3.1 base score of 3.1 (LOW).

How severe is CVE-2025-11731? +

CVE-2025-11731 has a CVSS v3.1 score of 3.1 out of 10, rated LOW. This is a low-severity vulnerability with limited impact.

How do I check if I'm vulnerable to CVE-2025-11731? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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