CVE-2026-81934

EUVD-2026-67227
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. Fixed in Redis 8.2.9, 8.4.6, 8.6.6, 8.8.2, and 8.10.1.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
cisa-cgCNA
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 45.34%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
redisredis
8.8.0
CNA
Debian logo
Debian Releases
Debian Product
Codename
redis
bookworm
vulnerable
bookworm (security)
vulnerable
bullseye
vulnerable
bullseye (security)
vulnerable
forky
vulnerable
sid
vulnerable
trixie
vulnerable
trixie (security)
vulnerable
Common Weakness Enumeration
Vulnerability Media Exposure
References
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