Vulnerabilities / CVE-2026-77638

critical

CVE-2026-77638

Tor before 0.4.9.11 is prone to a race condition where in just the rig ...

Published Modified CWE 362
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by 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.

Affected packages and fixed versions

SourcePackageFixed in
debian 11torno fix listed
debian 12tor0.4.9.11-0+deb12u1
debian 13tor0.4.9.11-0+deb13u1
debian 14tor0.4.9.11-1
echotor0.4.9.11-0+deb12u1
rapidfort alpine 3.20tor0.4.9.5-r0
rapidfort alpine 3.21tor0.4.9.5-r0
rapidfort alpine 3.22tor0.4.9.5-r0
rapidfort debian 12tor0:0.4.9.11-0+deb12u1, 0:0.4.9.11-0+deb13u1, 0:0.4.9.11-1
rapidfort debian 13tor0:0.4.9.11-0+deb12u1, 0:0.4.9.11-0+deb13u1, 0:0.4.9.11-1
rapidfort fedora 43tor0.4.9.14-1.fc43
rapidfort Oracle Linux 10tor0.4.9.14-1.el10_4
Show all 16 entries from 16 sources
SourcePackageFixed in
debian 11torno fix listed
debian 12tor0.4.9.11-0+deb12u1
debian 13tor0.4.9.11-0+deb13u1
debian 14tor0.4.9.11-1
echotor0.4.9.11-0+deb12u1
rapidfort alpine 3.20tor0.4.9.5-r0
rapidfort alpine 3.21tor0.4.9.5-r0
rapidfort alpine 3.22tor0.4.9.5-r0
rapidfort debian 12tor0:0.4.9.11-0+deb12u1, 0:0.4.9.11-0+deb13u1, 0:0.4.9.11-1
rapidfort debian 13tor0:0.4.9.11-0+deb12u1, 0:0.4.9.11-0+deb13u1, 0:0.4.9.11-1
rapidfort fedora 43tor0.4.9.14-1.fc43
rapidfort Oracle Linux 10tor0.4.9.14-1.el10_4
rapidfort Oracle Linux 9tor0.4.9.14-1.el9
rapidfort ubuntu 20.04tor0:0.4.9.6-1
rapidfort ubuntu 22.04tor0:0.4.9.6-1
rapidfort ubuntu 24.04tor0:0.4.9.6-1

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.