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Ubuntu CVE-2025-52891

| EUVDEUVD-2025-19726 MEDIUM
Improper Input Validation (CWE-20)
2025-07-02 security-advisories@github.com
6.5
CVSS 3.1 · GitHub Advisory
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Severity by source

GitHub Advisory PRIMARY
6.5 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
qualitative
SUSE
MEDIUM
qualitative
Red Hat
4.3 MEDIUM
qualitative

Primary rating from GitHub Advisory.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Lifecycle Timeline

4
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
EUVD ID Assigned
Mar 16, 2026 - 01:55 euvd
EUVD-2025-19726
Analysis Generated
Mar 16, 2026 - 01:55 vuln.today
CVE Published
Jul 02, 2025 - 15:15 nvd
MEDIUM 6.5

DescriptionGitHub Advisory

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 <foo></foo>), then a segmentation fault occurs. This issue has been patched in version 2.9.11. A workaround involves setting SecParseXmlIntoArgs to Off.

AnalysisAI

A remote code execution vulnerability in versions 2.9.8 to (CVSS 6.5). Remediation should follow standard vulnerability management procedures.

Technical ContextAI

CWE-20 (Improper Input Validation). Affects versions 2.9.8 to.

RemediationAI

Monitor vendor channels for patch availability.

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Vendor StatusVendor

Ubuntu

Priority: Medium
modsecurity
Release Status Version
focal needs-triage -
jammy needs-triage -
noble needs-triage -
upstream needs-triage -
plucky ignored end of life, was needs-triage
oracular ignored end of life, was needs-triage
questing needs-triage -

Debian

Bug #1108715
modsecurity-apache
Release Status Fixed Version Urgency
bullseye not-affected - -
bullseye (security) fixed 2.9.3-3+deb11u5 -
bookworm not-affected - -
bookworm (security) fixed 2.9.7-1+deb12u1 -
trixie fixed 2.9.11-1+deb13u1 -
forky, sid fixed 2.9.12-2 -
(unstable) fixed 2.9.11-1 -

SUSE

Severity: Medium
Product Status
SUSE Linux Enterprise Server 16.0 Fixed
openSUSE Tumbleweed Fixed
SUSE Linux Enterprise High Performance Computing 15 SP7 Fixed
SUSE Linux Enterprise Module for Server Applications 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP7 Fixed

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CVE-2025-52891 vulnerability details – vuln.today

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