CVE-2026-81934
Publication date 27 August 2026
Last updated 8 October 2026
Ubuntu priority
Description
Redis contains a use-after-free vulnerability in the 'tlsProcessPendingData()' function, which handles the TLS pending-data list if Redis is configured with TLS support. A remote, unauthenticated attacker may be able to execute arbitrary commands with the privileges of the Redis server.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| redis | 26.04 LTS resolute |
Fixed 5:8.0.5-1ubuntu0.1
|
| 24.04 LTS noble |
Fixed 5:7.0.15-1ubuntu0.24.04.5
|
|
| 22.04 LTS jammy |
Fixed 5:6.0.16-1ubuntu1.2
|
|
| 20.04 LTS focal |
Not affected
|
|
| 18.04 LTS bionic |
Not affected
|
|
| 16.04 LTS xenial |
Not affected
|
|
| 14.04 LTS trusty |
Not affected
|
Severity score breakdown
CVSS version:
Base score
7.5 · High
Vector: CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Base score
7.1 · High
Vector: CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
Related Ubuntu Security Notices (USN)
- USN-8866-1
- Redis vulnerabilities
- 6 October 2026
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-81934
- https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834 (8.8.2)
- https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834
- https://github.com/v12-security/pocs/tree/main/redis/server_ssl
- https://raw.githubusercontent.com/redis/redis/8.10/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.2/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.4/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.6/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/8.8/00-RELEASENOTES