CVE-2026-23631High· 8.1▾ MidnightPoC availableRedis 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…
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 44.6 · likelihood 0.6 · exploitation 12
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 1 source. Availability, not in-the-wild use.
Exploit-prediction probability, daily snapshots since Aug 2.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
2.8%
2 GitHub repos
2.8% → 3.1%
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.
redis < 8.6.3Upgrade past the affected range:
redis 8.6.3Field changes observed since this record was first indexed.
Connected by shared product, vendor, weakness, or advisory.
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