Description
Tor before 0.2.2.25-alpha, when configured as a relay without the Nickname configuration option, uses the local hostname as the Nickname value, which allows remote attackers to obtain potentially sensitive information by reading this value.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | tor | 0.2.2.27-beta-1 | — |
| Debian 13 | tor | 0.2.2.27-beta-1 | — |
| Debian 12 | tor | 0.2.2.27-beta-1 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | tor | 0.2.8.11-1.1 | openSUSE-SU-2024:10423-1 |
Advisories 1
- openSUSE-SU-2024:10423-1 tor-0.2.8.11-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026