What is GHSA-68vw-xv3c-52vp?

GHSA-68vw-xv3c-52vp is a security advisory published by GitHub Security Advisories with Medium severity. xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations.

Which CVE IDs does GHSA-68vw-xv3c-52vp cover?

GHSA-68vw-xv3c-52vp covers the following CVE IDs: CVE-2026-56411. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-68vw-xv3c-52vp?

GHSA-68vw-xv3c-52vp has a CVSS v3 base score of 6.9, published by GitHub Security Advisories.

GHSA-68vw-xv3c-52vpMediumCVSS 6.9

xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations.

Vendor

GitHub Security Advisories

Published

June 21, 2026

Last Modified

June 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-56411 →

📋 Description

xmlwf in libexpat before 2.8.2 has an integer overflow in endDoctypeDecl via NOTATION declarations.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-56411
https://github.com/libexpat/libexpat/pull/1263
https://github.com/advisories/GHSA-68vw-xv3c-52vp