CVE-2026-23631

Description

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.

PUBLISHED Reserved 2026-01-14 | Published 2026-05-05 | Updated 2026-05-06 | Assigner GitHub_M

Problem types

CWE-416: Use After Free

Product status

References

github.com/.../redis/security/advisories/GHSA-8ghh-qpmp-7826

github.com/redis/redis/releases/tag/8.6.3

cve.org (CVE-2026-23631)

nvd.nist.gov (CVE-2026-23631)

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