Use After Free Affecting valkey package, versions <0:8.0.11-1.el10_2


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
1.17% (67th percentile)

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  • Snyk IDSNYK-ORACLE10-VALKEY-19655421
  • published9 Sept 2026
  • disclosed18 Aug 2026

Introduced: 18 Aug 2026

CVE-2026-63639  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Oracle:10 valkey to version 0:8.0.11-1.el10_2 or higher.
This issue was patched in ELSA-2026-64796-0.

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:10 relevant fixed versions and status.

Valkey is a distributed key-value database. Prior to 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1, Valkey's RESTORE command accepts a malformed RDB stream payload that assigns one Pending Entry List NACK to multiple consumers during stream consumer-group deserialization, causing a use-after-free when one consumer is deleted while another still references the shared NACK and potentially allowing remote code execution. This issue is fixed in versions 7.2.14, 8.0.10, 8.1.9, 9.0.5, and 9.1.1.

CVSS Base Scores

version 3.1