CVE-2026-77638

Published Aug 20, 2026

Last updated 4 days ago

Overview

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.
Source
cve@mitre.org
NVD status
Received

Risk scores

CVSS 3.1

Type
Secondary
Base score
8.9
Impact score
6
Exploitability score
2.2
Vector string
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
Severity
HIGH

Weaknesses

cve@mitre.org
CWE-362

Social media

Hype score
Not currently trending

References

Sources include official advisories and independent security research.