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VULNERABILITIES

CVE-2026-56684 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/valkey-io/valkey/commit/7cd5bcb7575d750ec2de618db80da58680a10fe3 [email protected]
https://github.com/valkey-io/valkey/pull/4234 [email protected]
https://github.com/valkey-io/valkey/releases/tag/7.2.14 [email protected]
https://github.com/valkey-io/valkey/releases/tag/8.0.10 [email protected]
https://github.com/valkey-io/valkey/releases/tag/8.1.9 [email protected]

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After Free[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-56684
NVD Published Date:
Aug 18, 2026
NVD Last Modified:
Sep 18, 2026
Source:
[email protected]
CVE-2026-56684 Details - Not Deferred