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CVE-2026-86140
Component Overview
Vulnerability Overview
Name
CVE-2026-86140
Source
NVD (
link
)
Debian (
link
)
Description
In libxml2 before 2.15.4, xmlSnprintfElements in valid.c has a strcat stack-based buffer overflow.
CWEs
CWE-121
Published Date
Sep 5, 2026
Updated Date
Sep 15, 2026
Workaround
-
Advisories
https://github.com/GNOME/libxml2/commit/d1686f91dbda141a752200419d35639fd6b38340
Patch
https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4
Release Notes
Analysis
#
Affected Component
Analysis
libxml2
Exploitable
Vulnerability Ratings
#
8
CVSSv31
7.8
CVSSv31
NaN
other
Others affected components
#
Name
Project
Project Version
Version
Status
libxml2
buildroot
2025.02.x
2.15.4
Not Affected
libxml2
buildroot
master
2.15.4
Not Affected
libxml2
openwrt
master
2.15.3-r1
Exploitable
libxml2
openwrt
openwrt-25.12
2.15.1-r1
Exploitable
libxml2
yocto
kirkstone
2.9.14
Exploitable
libxml2
yocto
master
2.15.4
Not Affected