Use After Free Affecting valkey-devel package, versions <8.0.10-150700.3.20.1


Severity

Recommended
0.0
high
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.89% (58th percentile)

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  • Snyk IDSNYK-SLES157-VALKEYDEVEL-18477477
  • published31 Jul 2026
  • disclosed30 Jul 2026

Introduced: 30 Jul 2026

CVE-2026-56684  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade SLES:15.7 valkey-devel to version 8.0.10-150700.3.20.1 or higher.

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 SLES. See How to fix? for SLES:15.7 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 tlsProcessPendingData function iterates pending_list while an authenticated client can trigger CLIENT KILL, causing connTLSClose to delete the iterator's cached next node and producing a use-after-free that can crash the server or potentially allow remote code execution when TLS is enabled. 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