high8.1
CVE-2026-23631
Redis is an in-memory data structure store.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Redis | Redis | before 8.6.3 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/redis/redis/releases/tag/8.6.3
- https://github.com/redis/redis/security/advisories/GHSA-8ghh-qpmp-7826
- https://access.redhat.com/errata/RHSA-2026:14316
- https://access.redhat.com/errata/RHSA-2026:25216
- https://access.redhat.com/errata/RHSA-2026:25219
- https://access.redhat.com/errata/RHSA-2026:25925
- https://access.redhat.com/errata/RHSA-2026:26306
- https://access.redhat.com/errata/RHSA-2026:26540
- https://access.redhat.com/errata/RHSA-2026:33444
- https://access.redhat.com/security/cve/CVE-2026-23631
- https://bugzilla.redhat.com/show_bug.cgi?id=2466788
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23631.json