CVE-2025-46819
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.1
- 7.1 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- EPSS
- 1.06% probability · 63th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-190, CWE-125
- Affected
- redis/redis
- Source
- security-advisories@github.com
References
- https://github.com/redis/redis/commit/3a1624da2449ac3dbfc4bdaed43adf77a0b7bfbaPatch
- https://github.com/redis/redis/releases/tag/8.2.2Release Notes
- https://github.com/redis/redis/security/advisories/GHSA-4c68-q8q8-3g4fThird Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-46819-detect-redis-vulnerabilityThird Party Advisory
- https://www.vicarius.io/vsociety/posts/cve-2025-46819-mitigate-redis-vulnerabilityMitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.