CVE-2026-23631

Redis is an in-memory data structure store. In all versions of redis-server with Lua scripting, an authenticated attacker can exploit the master-replica synchronization mechanism to trigger a use-after-free on replicas where replica-read-only is disabled or can be disabled, which may lead to remote code execution. A workaround is to prevent users from executing Lua scripts or avoid using replicas where replica-read-only is disabled. This is patched in version 8.6.3.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/redis/redis/releases/tag/8.6.3	Release Notes
https://github.com/redis/redis/security/advisories/GHSA-8ghh-qpmp-7826	Mitigation Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:redis:redis:*:*:*:*:*:*:*:*

History

06 May 2026, 16:14

Type	Values Removed	Values Added
References	~~() https://github.com/redis/redis/releases/tag/8.6.3 -~~	() https://github.com/redis/redis/releases/tag/8.6.3 - Release Notes
References	~~() https://github.com/redis/redis/security/advisories/GHSA-8ghh-qpmp-7826 -~~	() https://github.com/redis/redis/security/advisories/GHSA-8ghh-qpmp-7826 - Mitigation, Vendor Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 8.1
First Time		Redis redis Redis
CPE		cpe:2.3:a:redis:redis::::::::

05 May 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-05 17:17

Updated : 2026-05-06 16:14

NVD link : CVE-2026-23631

Mitre link : CVE-2026-23631

CVE.ORG link : CVE-2026-23631

JSON object : View

Products Affected

redis

redis

CWE

CWE-416

Use After Free

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