Description
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.
Affected products
redis: redis
References5
- github.com/redis/redis/commit/3a1624da2449ac3dbfc4bdaed43adf77a… Patch
- github.com/redis/redis/releases/tag/8.2.2 Release Notes
- github.com/redis/redis/security/advisories/GHSA-4c68-q8q8-3g4f Third Party Advisory
- www.vicarius.io/vsociety/posts/cve-2025-46819-detect-redis-vuln… Third Party Advisory
- www.vicarius.io/vsociety/posts/cve-2025-46819-mitigate-redis-vu… MitigationThird Party Advisory
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H - EPSS — exploit probability
- 1% percentile: 65 · as of 9 November 2026
- CWE
- CWE-190CWE-125
Could this be exploited in your environment?
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