Use-after-free in Valkey - #VU146567
Published: September 1, 2026
Vulnerability identifier: #VU146567
CSH Severity: Low
CVSS v4: 7.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-416
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code or cause a denial of service.
The vulnerability exists due to use-after-free in the RDMA pending-data handler when processing pending data for RDMA connections. A remote user can run a command that frees another client\'s connection while pending data is being processed to execute arbitrary code or cause a denial of service.
Only servers built with RDMA support and configured with an RDMA listener are affected, and RDMA-capable hardware is required.
Affected software
Valkey
Remediation
Install security update from vendor's website.
Valkey - addressed in versions 8.0.11, 8.1.10, 9.0.6, 9.1.2