CVE-2026-81934
Medium
Elevated severity or exploit probability.
CVSS base
7.1
HIGH
CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.7%
49.7th percentile
CISA KEV
Not listed
Weakness / dates
CWE-416
Published 2026-08-27 · modified 2026-08-31
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.
References
- https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834
- https://github.com/redis/redis/releases/tag/6.2.24
- https://github.com/redis/redis/releases/tag/7.2.16
- https://github.com/redis/redis/releases/tag/7.4.11
- https://github.com/redis/redis/releases/tag/8.10.1
- https://github.com/redis/redis/releases/tag/8.2.9
- https://github.com/redis/redis/releases/tag/8.4.6
- https://github.com/redis/redis/releases/tag/8.6.6
- https://github.com/redis/redis/releases/tag/8.8.2
- https://github.com/v12-security/pocs/tree/main/redis/server_ssl
- https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-239-01.json
- https://raw.githubusercontent.com/redis/redis/6.2/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/7.2/00-RELEASENOTES
- https://raw.githubusercontent.com/redis/redis/7.4/00-RELEASENOTES
- 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
- https://redis.io/docs/latest/operate/rs/release-notes/rs-7-22-releases/rs-7-22-2-179/
- https://redis.io/docs/latest/operate/rs/release-notes/rs-7-8-releases/rs-7-8-6-303/
- https://redis.io/docs/latest/operate/rs/release-notes/rs-8-0-releases/rs-8-0-20-96/
- https://redis.io/docs/latest/operate/rs/release-notes/rs-8-2-releases/rs-8-2-0-46/
- https://www.cve.org/CVERecord?id=CVE-2026-81934