Expired Pointer Dereference Affecting valkey-devel package, versions <0:9.0.5-1.amzn2023.0.1


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
1.17% (67th percentile)

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  • Snyk IDSNYK-AMZN2023-VALKEYDEVEL-18531429
  • published5 Aug 2026
  • disclosed18 Aug 2026

Introduced: 5 Aug 2026

CVE-2026-63639  (opens in a new tab)
CWE-825  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 valkey-devel to version 0:9.0.5-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-2011.

NVD Description

Note: Versions mentioned in the description apply only to the upstream valkey-devel package and not the valkey-devel package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 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