CVE-2026-23631
6.1
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
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| redis | redis | < 8.6.3 | affected |
Weaknesses
- CWE-416: CWE-416: Use After Free
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
redis: Remote code execution via use-after-free in Lua scripting
Additional References
- 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
- https://access.redhat.com/errata/RHSA-2026:26540
- https://access.redhat.com/errata/RHSA-2026:25216
- https://access.redhat.com/errata/RHSA-2026:33444
- https://access.redhat.com/errata/RHSA-2026:26306
- https://access.redhat.com/errata/RHSA-2026:25219
- https://access.redhat.com/errata/RHSA-2026:25925
References
- https://github.com/redis/redis/security/advisories/GHSA-8ghh-qpmp-7826
- https://github.com/redis/redis/releases/tag/8.6.3
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