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vulnerability
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CVE-2026-56131
Component Overview
Vulnerability Overview
Name
CVE-2026-56131
Source
NVD (
link
)
Debian (
link
)
Description
libexpat before 2.8.2 lacks handler call depth tracking for calls to XML_ResumeParser from within handlers in cases of a policy violation. Thus, a use-after-free can occur (similar to the CVE-2026-50219 situation).
CWEs
CWE-416
Published Date
Jun 19, 2026
Updated Date
Jun 23, 2026
Workaround
-
Advisories
https://github.com/libexpat/libexpat/pull/1267
Patch
Analysis
#
Affected Component
Analysis
expat
Exploitable
Vulnerability Ratings
#
4.9
CVSSv31
NaN
other
Others affected components
#
Name
Project
Project Version
Version
Status
expat
buildroot
2025.02.x
2.8.1
Exploitable
expat
buildroot
master
2.8.1
Exploitable
expat
openwrt
master
2.8.1-r1
Exploitable
expat
yocto
kirkstone
2.5.0
Exploitable
expat
yocto
master
2.8.1
Exploitable
expat
yocto
scarthgap
2.6.4
Exploitable