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CVE-2026-56684 (GCVE-0-2026-56684)

Vulnerability from cvelistv5 – Published: 2026-08-18 14:19 – Updated: 2026-08-19 03:56
VLAI
Title
Valkey: TLS pending-data processing use-after-free may allow remote code execution
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 00:00 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
valkey-io valkey Affected: < 7.2.14
Affected: >= 8.0.0, < 8.0.10
Affected: >= 8.1.0, < 8.1.9
Affected: >= 9.0.0, < 9.0.5
Affected: >= 9.1.0, < 9.1.1
guessed Create a notification for this product.
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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