CVE-2026-77638

HIGH CVSS 8.9 View on NVD ↗

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.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L

References

https://gitlab.torproject.org/tpo/core/tor/-/raw/tor-0.4.9.11/ChangeLog

Published: Aug 20, 2026 21:17 UTC Modified: Aug 20, 2026 21:17 UTC