CVE-2026-45186

Name

CVE-2026-45186

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.

NVD Severity

unknown

Other trackers

CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia

Mailing lists

oss-security, full-disclosure, bugtraq

Exploits

Exploit DB, Metasploit

Forges

GitHub (code, issues), Aports (code, issues)

References

Type	URI
cve@mitre.org	https://github.com/libexpat/libexpat/pull/1216
af854a3a-2127-422b-91ae-364da2661108	http://www.openwall.com/lists/oss-security/2026/05/11/16

Match rules

CPE URI	Source package	Min version	Max version
`cpe:2.3:a:libexpat_project:libexpat::::::::`	libexpat	>= None	< 2.8.1

Vulnerable and fixed packages

Source package	Branch	Version	Maintainer	Status
expat	edge-main	2.8.1-r0	Carlo Landmeter <clandmeter@alpinelinux.org>	fixed