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.

Project Subscriptions

Vendors Products
Torproject Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 20 Aug 2026 21:15:00 +0000

Type Values Removed Values Added
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.
First Time appeared Torproject
Torproject tor
Weaknesses CWE-362
CPEs cpe:2.3:a:torproject:tor:*:*:*:*:*:*:*:*
Vendors & Products Torproject
Torproject tor
References
Metrics cvssV3_1

{'score': 8.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-08-20T20:52:29.708Z

Reserved: 2026-08-20T20:52:29.384Z

Link: CVE-2026-77638

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-20T21:17:11.097

Modified: 2026-08-20T21:17:11.097

Link: CVE-2026-77638

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-20T23:30:06Z

Weaknesses