CVE-2026-66373 Affecting redis:6/redis-doc package, versions <0:6.0.9-5.module+el8.4.0+24914+3cb9e211.7


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.87% (58th percentile)

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  • Snyk IDSNYK-RHEL8-REDIS-20088626
  • published24 Sept 2026
  • disclosed25 Jul 2026

Introduced: 25 Jul 2026

CVE-2026-66373  (opens in a new tab)
CWE-1341  (opens in a new tab)

How to fix?

Upgrade RHEL:8 redis:6/redis-doc to version 0:6.0.9-5.module+el8.4.0+24914+3cb9e211.7 or higher.
This issue was patched in RHSA-2026:69542.

NVD Description

Note: Versions mentioned in the description apply only to the upstream redis:6/redis-doc package and not the redis:6/redis-doc package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Redis before 8.8.0, in the unusual case where an authenticated attacker can execute RESTORE, allows remote code execution via a RESTORE payload where the same NACK (pending entry) is referenced by more than one consumer, because deleting both consumers via XGROUP DELCONSUMER leads to a double free. NOTE: this issue exists because of an incomplete fix for CVE-2026-25243.

CVSS Base Scores

version 3.1