CVE-2026-23631NVD

Vulnerability 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.

Severity Level

UNKNOWN

Published Date

May 5, 2026

Last Modified

Jul 16, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

2.81%Probability

Root Weakness (CWE)

CWE-416: Unknown/Unlisted Weakness ↗

Refer to the official MITRE database for detailed architectural specifications regarding this weakness.

CVSS v4.0 Base Metrics — Score 6.1 (MEDIUM)

Attack VectorNetwork

Attack ComplexityHigh

Attack RequirementsNone

Privileges RequiredLow

User InteractionNone

Confidentiality (Vulnerable System)None

Integrity (Vulnerable System)High

Availability (Vulnerable System)High

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)None

Affected & Patched Versions

Affected Versions

redis redis >= < 8.6.3

Patched Versions

Not provided by cveorg for this CVE.

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