CVE-2026-77587
Fixed in a distro release EPSS <1%CVSS 5.9
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.
Products: torproject tor
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| Debian 12 | tor | 0.4.9.11-0+deb12u1 |
| Debian 13 | tor | 0.4.9.11-0+deb13u1 |
| Debian 14 | tor | 0.4.9.11-1 |
| Ubuntu 22.04 LTS | tor | no fix |
| Ubuntu 24.04 LTS | tor | no fix |
| Ubuntu 26.04 LTS | tor | no fix |
| Ubuntu Pro 14.04 LTS | tor | no fix |
| Ubuntu Pro 16.04 LTS | tor | no fix |
| Ubuntu Pro 18.04 LTS | tor | no fix |
| Ubuntu Pro 20.04 LTS | tor | no fix |
| openSUSE Leap 16.0 | tor | 0.4.9.11-bp160.1.1 |
| openSUSE Tumbleweed | tor | 0.4.9.11-1.1 |