Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted LUA script to read out-of-bound data or crash the server and subsequent denial of service. The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2. To workaround this issue without patching the redis-server executable is to prevent users from executing Lua scripts. This can be done using ACL to block a script by restricting both the EVAL and FUNCTION command families.
Fix
Public exploits 1
- dwisiswant0/CVE-2025-46819 PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 2
- https://github.com/redis/redis/commit/3a1624da2449ac3dbfc4bdaed43adf77a0b7bfba Patch
- https://www.vicarius.io/vsociety/posts/cve-2025-46819-mitigate-redis-vulnerability Mitigation, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 7.1 · redisNVD modified 2026-10-19 17:10
Affected (CPE criteria) 1
cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*
References 5
- https://github.com/redis/redis/commit/3a1624da2449ac3dbfc4bdaed43adf77a0b7bfba Patch
- https://github.com/redis/redis/releases/tag/8.2.2 Release Notes
- https://github.com/redis/redis/security/advisories/GHSA-4c68-q8q8-3g4f Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-46819-detect-redis-vulnerability Third Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-46819-mitigate-redis-vulnerability Mitigation, Third Party Advisory