What is GHSA-pq38-gw56-4w65?

GHSA-pq38-gw56-4w65 is a security advisory published by GitHub Security Advisories with High severity. Tor before 0.4.9.11 is prone to a race condition where in just the right circumstances a...

Which CVE IDs does GHSA-pq38-gw56-4w65 cover?

GHSA-pq38-gw56-4w65 covers the following CVE IDs: CVE-2026-77638. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-pq38-gw56-4w65?

GHSA-pq38-gw56-4w65 has a CVSS v3 base score of 8.9, published by GitHub Security Advisories.

GHSA-pq38-gw56-4w65HighCVSS 8.9

Tor before 0.4.9.11 is prone to a race condition where in just the right circumstances a...

Vendor

GitHub Security Advisories

Published

August 20, 2026

Last Modified

August 20, 2026

🔗 CVE IDs covered (1)

CVE-2026-77638 →

📋 Description

Tor before 0.4.9.11 is prone to a race condition where in just the right circumstances a rendezvous point could man-in-the-middle (impersonate) the onion service that the client was trying to reach.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-77638
https://gitlab.torproject.org/tpo/core/tor/-/raw/tor-0.4.9.11/ChangeLog
https://github.com/advisories/GHSA-pq38-gw56-4w65