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CVE-2026-45186
Component Overview
Vulnerability Overview
Name
CVE-2026-45186
Source
NVD (
link
)
Debian (
link
)
Description
In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.
CWEs
CWE-407
Published Date
May 10, 2026
Updated Date
Jun 17, 2026
Workaround
-
Advisories
https://github.com/libexpat/libexpat/pull/1216
Exploit
http://www.openwall.com/lists/oss-security/2026/05/11/16
Mailing List
Analysis
#
Affected Component
Analysis
expat
Exploitable
Vulnerability Ratings
#
2.9
CVSSv31
7.5
CVSSv31
NaN
other
Others affected components
#
Name
Project
Project Version
Version
Status
expat
buildroot
2025.02.x
2.8.1
Not Affected
expat
buildroot
master
2.8.1
Not Affected
expat
openwrt
master
2.8.1-r1
Not Affected
expat
openwrt
openwrt-25.12
2.8.1-r1
Not Affected
expat
yocto
kirkstone
2.5.0
Exploitable
expat
yocto
master
2.8.1
Not Affected