Insufficient entropy in expat - CVE-2026-41080
Published: April 27, 2026
Vulnerability identifier: #VU128246
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-41080
CWE-ID: CWE-331
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: libexpat.org
Affected software:
expat
expat
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service attack.
The vulnerability exists due to insufficient entropy. A remote attacker can supply a specially crafted XML document and flood hashes, leading to a denial of service condition.
How to mitigate CVE-2026-41080
Install updates from vendor's website.