What is GHSA-wr2r-m36x-734x?

GHSA-wr2r-m36x-734x is a security advisory published by GitHub Security Advisories with High severity. A pre-authentication attacker could leverage type size/count handling to cause excessive...

Which CVE IDs does GHSA-wr2r-m36x-734x cover?

GHSA-wr2r-m36x-734x covers the following CVE IDs: CVE-2026-66273. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-wr2r-m36x-734x?

GHSA-wr2r-m36x-734x has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-wr2r-m36x-734xHighCVSS 7.5

A pre-authentication attacker could leverage type size/count handling to cause excessive...

Vendor

GitHub Security Advisories

Published

August 5, 2026

Last Modified

August 6, 2026

🔗 CVE IDs covered (1)

CVE-2026-66273 →

📋 Description

A pre-authentication attacker could leverage type size/count handling to cause excessive allocation leading to potential denial of service.

This issue affects Apache Qpid Proton-J: through 0.34.1.

Users are recommended to upgrade to version 0.35.0, which fixes the issue.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-66273
https://lists.apache.org/thread/z34s9v5w05qk4qqtz5fs3v9wpxz6fnbh
http://www.openwall.com/lists/oss-security/2026/08/04/9
https://github.com/advisories/GHSA-wr2r-m36x-734x