CVE-2026-23631
MEDIUM EPSS 64.8%
Published May 5, 20261mo ago · Modified Jun 17, 20261w ago
6.1 CVSS 4.0
Published May 5, 2026 1mo ago
Last Modified Jun 17, 2026 1w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity High
Privileges Required Low
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
64.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-416 Use After Free Memory Safety
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| redis | redis | * | <8.6.3 |
References 2
- github.com https://github.com/redis/redis/releases/tag/8.6.3
- github.com https://github.com/redis/redis/security/advisories/GHSA-8ghh-qpmp-7826
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.