Use After Free Affecting redis package, versions <5:7.0.15-1~deb12u8


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
2.81% (86th percentile)

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  • Snyk IDSNYK-DEBIAN12-REDIS-16740040
  • published18 May 2026
  • disclosed5 May 2026

Introduced: 5 May 2026

CVE-2026-23631  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Debian:12 redis to version 5:7.0.15-1~deb12u8 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream redis package and not the redis package as distributed by Debian. See How to fix? for Debian:12 relevant fixed versions and status.

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 Base Scores

version 3.1