CVE-2026-44597
Publication date 7 May 2026
Last updated 13 May 2026
Ubuntu priority
Description
Tor before 0.4.9.7 has an out-of-bounds read when an END, a TRUNCATE, or a TRUNCATED cell lacks a reason in its payload, aka TROVE-2026-011.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| tor | 26.04 LTS resolute |
Needs evaluation
|
| 25.10 questing |
Needs evaluation
|
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
|
| 14.04 LTS trusty |
Needs evaluation
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
3.7 · Low
|
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L |
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-44597
- https://forum.torproject.org/c/news/tor-release-announcement/28
- https://www.openwall.com/lists/oss-security/2026/05/06/8
- https://gitlab.torproject.org/tpo/core/tor/-/work_items/41254
- https://gitlab.torproject.org/tpo/core/tor/-/commit/8f98054b1982d00a14639864d03e9afd90b87481