VulnerabilityModified
CVE-2026-41080
libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
LOW 2.9EPSS 0.40%
Does this matter?
Lower severity and a low EPSS score (0.40%). Track it; it rarely justifies an emergency change on its own.
Description
libexpat before 2.8.0 uses insufficient entropy, and thus hash flooding can occur via a crafted XML document.
- CVSS 3.1
- 2.9 LOWCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
- EPSS
- 0.40% probability · 33th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-331
- Affected
- libexpat project/libexpat
- Source
- cve@mitre.org
References
- https://blog.hartwork.org/posts/expat-2-8-0-released/Release Notes
- https://github.com/libexpat/libexpat/issues/47Issue Tracking
- https://github.com/libexpat/libexpat/pull/1183Issue Tracking, Patch
- https://www.openwall.com/lists/oss-security/2026/04/26/1Mailing List
- http://www.openwall.com/lists/oss-security/2026/04/26/1Mailing List
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.