CVE-2026-23631mediumCWE-416

CVE-2026-23631: medium-severity vulnerability in redis

redis-server Lua use-after-free may allow remote code execution

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35Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 6.1epss 3.1%
from disclosure to weapon2 days
Published on NVDMay 5
1st PoC+2d
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:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products
redis · redis
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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