CVE-2025-52891

Public on 2025-07-02

Modified on 2025-07-02

Description

ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. In versions 2.9.8 to before 2.9.11, an empty XML tag can cause a segmentation fault. If SecParseXmlIntoArgs is set to On or OnlyArgs, and the request type is application/xml, and at least one XML tag is empty (eg ), then a segmentation fault occurs. This issue has been patched in version 2.9.11. A workaround involves setting SecParseXmlIntoArgs to Off.

Severity

Medium

See what this means

CVSS v3 Base Score

4.3

See breakdown

Affected Packages

Platform	Package	Status
Amazon Linux 1	mod_security	Not Affected
Amazon Linux 2 - Core	mod_security	Pending Fix
Amazon Linux 2023	mod_security	Pending Fix

CVSS Scores

	Score Type	Score	Vector
Amazon Linux	CVSSv3	4.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
NVD	CVSSv3	6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References

FAQs regarding Amazon Linux ALAS/CVE Severity Red Hat: CVE-2025-52891 Mitre: CVE-2025-52891