CVEvulnerability

CVE-2026-21863

7.5 HIGH Published 2026-02-23 Modified 2026-07-15 Official page ↗
Status
Modified
Published
2026-02-23
Last modified
2026-07-15
Assigner
[email protected]
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-125

Description

Valkey is a distributed key-value database. Prior to versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12, a malicious actor with access to the Valkey clusterbus port can send an invalid packet that may cause an out bound read, which might result in the system crashing. The Valkey clusterbus packet processing code does not validate that a clusterbus ping extension packet is located within buffer of the clusterbus packet before attempting to read it. Versions 9.0.2, 8.1.6, 8.0.7, and 7.2.12 fix the issue. As an additional mitigation, don't expose the cluster bus connection directly to end users, and protect the connection with its own network ACLs.

Affected configurations

• lfprojects valkey (< 7.2.12) • lfprojects valkey (>= 8.0.0 < 8.0.7) • lfprojects valkey (>= 8.1.0 < 8.1.6) • lfprojects valkey (>= 9.0.0 < 9.0.2)

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References