HIGHVulnerability

CVE-2026-77638

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.

Properties

severity
HIGH
score
8.9
epss_score
0.00174
cve_id
CVE-2026-77638
vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:L
published_at
2026-08-20T21:17:11.097
last_modified
2026-09-03T17:24:13.970
epss_percentile
0.06972

Related Entities (3)

ENRICHED_BY (1)

[Source]FIRST EPSS

HAS_WEAKNESS (1)

[Weakness]Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

DESCRIBED_BY (1)

[Source]NVD

Explore deeper with Ninja Signal's threat intelligence graph

CVE-2026-77638 — Ninja Signal Threat Intelligence | Ninja Signal