Double Free Affecting valkey package, versions <0:8.0.10-1.el9_8


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.87% (58th percentile)

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  • Snyk IDSNYK-ORACLE9-VALKEY-19655410
  • published9 Sept 2026
  • disclosed25 Jul 2026

Introduced: 25 Jul 2026

CVE-2026-66373  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade Oracle:9 valkey to version 0:8.0.10-1.el9_8 or higher.
This issue was patched in ELSA-2026-64807-0.

NVD Description

Note: Versions mentioned in the description apply only to the upstream valkey package and not the valkey package as distributed by Oracle. See How to fix? for Oracle:9 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