CVE-2026-81934
9.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Redis | Redis | 8.8.0 | affected |
| Redis | Redis | 8.2.9 | unaffected |
| Redis | Redis | 8.4.6 | unaffected |
| Redis | Redis | 8.6.6 | unaffected |
| Redis | Redis | 8.8.2 | unaffected |
| Redis | Redis | 8.10.1 | unaffected |
Weaknesses
- CWE-416: CWE-416 Use After Free
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/8.2/00-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://raw.githubusercontent.com/redis/redis/8.10/00-RELEASENOTES
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