What is GHSA-r8qx-5vfx-8w6r?

GHSA-r8qx-5vfx-8w6r is a security advisory published by GitHub Security Advisories with Medium severity. libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and...

Which CVE IDs does GHSA-r8qx-5vfx-8w6r cover?

GHSA-r8qx-5vfx-8w6r covers the following CVE IDs: CVE-2026-56407. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-r8qx-5vfx-8w6r?

GHSA-r8qx-5vfx-8w6r has a CVSS v3 base score of 6.9, published by GitHub Security Advisories.

GHSA-r8qx-5vfx-8w6rMediumCVSS 6.9

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and...

Vendor

GitHub Security Advisories

Published

June 21, 2026

Last Modified

June 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-56407 →

📋 Description

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-56407
https://github.com/libexpat/libexpat/pull/1262
https://github.com/advisories/GHSA-r8qx-5vfx-8w6r