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 manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code execution. 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 restrict EVAL and EVALSHA commands.
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4325-1 redis security update
Debian DSA Debian DSA DSA-6020-1 redis security update
Debian DSA Debian DSA DSA-6022-1 valkey security update
EUVD EUVD EUVD-2025-32326 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 manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code execution. 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 restrict EVAL and EVALSHA commands.
Ubuntu USN Ubuntu USN USN-7824-1 Redis vulnerability
Ubuntu USN Ubuntu USN USN-7824-2 Redict vulnerability
Ubuntu USN Ubuntu USN USN-7824-3 Redis vulnerability
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 16 Oct 2025 16:30:00 +0000

Type Values Removed Values Added
First Time appeared Lfprojects
Lfprojects valkey
CPEs cpe:2.3:a:lfprojects:valkey:*:*:*:*:*:*:*:*
Vendors & Products Lfprojects
Lfprojects valkey

Mon, 06 Oct 2025 19:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*

Mon, 06 Oct 2025 14:45:00 +0000

Type Values Removed Values Added
First Time appeared Redis
Redis redis
Vendors & Products Redis
Redis redis

Mon, 06 Oct 2025 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Important


Fri, 03 Oct 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 03 Oct 2025 19:30:00 +0000

Type Values Removed Values Added
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 manipulate the garbage collector, trigger a use-after-free and potentially lead to remote code execution. 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 restrict EVAL and EVALSHA commands.
Title Redis Lua Use-After-Free may lead to remote code execution
Weaknesses CWE-416
References
Metrics cvssV3_1

{'score': 10, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-10-08T03:55:16.159Z

Reserved: 2025-06-11T14:33:57.800Z

Link: CVE-2025-49844

cve-icon Vulnrichment

Updated: 2025-10-03T19:46:39.985Z

cve-icon NVD

Status : Analyzed

Published: 2025-10-03T20:15:32.823

Modified: 2025-10-16T16:28:05.690

Link: CVE-2025-49844

cve-icon Redhat

Severity : Important

Publid Date: 2025-10-03T19:27:23Z

Links: CVE-2025-49844 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-10-06T14:42:28Z