CVE-2026-23479NVD

Vulnerability Summary

Redis is an in-memory data structure store. In redis-server from 7.2.0 until 8.6.3, the unblock client flow does not handle an error return from `processCommandAndResetClient` when re-executing a blocked command. If a blocked client is evicted during this flow, an authenticated attacker can trigger a use-after-free that may lead to remote code execution. This has been 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)

1.29%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 7.7 (HIGH)

Attack VectorNetwork

Attack ComplexityHigh

Attack RequirementsNone

Privileges RequiredLow

User InteractionNone

Confidentiality (Vulnerable System)High

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 >= >= 7.2.0, < 8.6.3

Patched Versions

Not provided by cveorg for this CVE.

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