tor: 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...
CVE-2026-77587 is fixed in tor on 1 platform, first by DEBIAN-CVE-2026-77587, released August 21, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| tor · Debian 12.15 (bookworm) | 0.4.9.11-0+deb12u1 | DEBIAN-CVE-2026-77587 | Aug 21, 2026 |
| tor · Debian 13.5 (trixie) | 0.4.9.11-0+deb13u1 | DEBIAN-CVE-2026-77587 | Aug 21, 2026 |
| tor · Debian 14 | 0.4.9.11-1 | DEBIAN-CVE-2026-77587 | Aug 21, 2026 |
| tor · opensuse-leap 16.0 | 0.4.9.11-bp160.1.1 | OPENSUSE-SU-2026:21660-1 | Aug 25, 2026 |
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