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high·Product Based Network Vulnerabilities·Updated Oct 11, 2025

Redis < 8.2.1 Lua Long-String Delimiter - Out-of-Bounds Read

Est. Time~10 seconds
Scan TypeSingle Scan
Targetsdomain, subdomain, ipv4
CostFree
3.5k
Times Used
continuous scan runs
0
Continuously Checked
assets under CS
4
Vulnerabilities Found
confirmed findings
References
CVECVE-2025-46819
6.3
CVSSmedium
Requires local system access · low-privilege account sufficient.

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.

Attack Vector
Local
Privileges Req.
Low
User Interaction
None
Affected
redisby redis
< 8.2.2
Updated Sep 9, 2026View on NVD →

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Redis < 8.2.1 Lua Long-String Delimiter - Out-of-Bounds Read Scanner | S4E