This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-77587 →

DEBIAN-CVE-2026-77587

Tor before 0.4.9.11 is prone to a use-after-free (and potential double free) of a conflux object when a recovery leg revives a conflux set whose last...

Original description

The description as published by the source.

Tor before 0.4.9.11 is prone to a use-after-free (and potential double free) of a conflux object when a recovery leg revives a conflux set whose last linked leg has already been closed. A malicious exit node could use this to crash a client. This is TROVE-2026-026.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 tor

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.9.11-0+deb12u1"}]}]

Debian:13 tor

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.9.11-0+deb13u1"}]}]

Debian:14 tor

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.9.11-1"}]}]

References

advisory security-tracker.debian.org