CVE-2026-77638

State
Published
Severity
8.9 High
Published
Aug 20, 2026
Updated
Aug 27, 2026
Reserved
Aug 20, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.18.9 HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:Lmitre

Weaknesses

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Affected Products

ProductVersions
Tortorproject
  • 0.3.5.3-alpha to before 0.4.9.11Affected

References

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