What is GHSA-mqcv-532f-gp47?

GHSA-mqcv-532f-gp47 is a security advisory published by GitHub Security Advisories with High severity. In moxygen before commit 004123dd24c3, MoQSession::dataStreamReadLoop keeps using a stream read...

Which CVE IDs does GHSA-mqcv-532f-gp47 cover?

GHSA-mqcv-532f-gp47 covers the following CVE IDs: CVE-2026-84894. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-mqcv-532f-gp47?

GHSA-mqcv-532f-gp47 has a CVSS v3 base score of 7.5, published by GitHub Security Advisories.

GHSA-mqcv-532f-gp47HighCVSS 7.5

In moxygen before commit 004123dd24c3, MoQSession::dataStreamReadLoop keeps using a stream read...

Vendor

GitHub Security Advisories

Published

September 28, 2026

Last Modified

September 30, 2026

🔗 CVE IDs covered (1)

CVE-2026-84894 →

📋 Description

In moxygen before commit 004123dd24c3, MoQSession::dataStreamReadLoop keeps using a stream read handle after reading a FIN, which invalidates the handle under proxygen's WebTransport API. A remote peer can trigger the stale use by opening a data stream that names an unknown track alias and carries the FIN in the same write.

🔗 References (4)

https://nvd.nist.gov/vuln/detail/CVE-2026-84894
https://github.com/facebookexperimental/moxygen/commit/004123dd24c30dad6b649163575145f240dabc94
https://www.facebook.com/security/advisories/cve-2026-84894
https://github.com/advisories/GHSA-mqcv-532f-gp47