CVE-2026-81934: high-severity vulnerability in Redis
Redis TLS pending-data list use-after-free
Published · Updated
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41Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 7.5epss 0.5%
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.
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
public PoCs found — 1
cve_referencegithub.com/v12-security/pocs/tree/main/redis/server_sslunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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References
https://github.com/redis/redis/commit/6d088c335d5c3ec49a6c28486140b498e70b7834https://github.com/redis/redis/releases/tag/6.2.24https://github.com/redis/redis/releases/tag/7.2.16https://github.com/redis/redis/releases/tag/7.4.11https://github.com/redis/redis/releases/tag/8.10.1https://github.com/redis/redis/releases/tag/8.2.9https://github.com/redis/redis/releases/tag/8.4.6https://github.com/redis/redis/releases/tag/8.6.6https://github.com/redis/redis/releases/tag/8.8.2https://github.com/v12-security/pocs/tree/main/redis/server_sslhttps://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-26-239-01.jsonhttps://raw.githubusercontent.com/redis/redis/6.2/00-RELEASENOTES