SEPTEMBER 14, 2026
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Case File

CVE-2026-82631

LOW · CVSS 2.2 EPSS 0.36% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-31 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

A vulnerability exists in the Blocked-on-keys Subsystem of F5's valkey 9.1.0, specifically in the handleClientsBlockedOnKey function, leading to a use-after-free condition that can be exploited remotely. Although the attack complexity is high and the overall severity is low, organizations using this version should prioritize applying the patch (b2fb0e13f5b4c8c2fb63dcfc2c37a067a0d6d20b) to mitigate potential risks, especially given that the exploit has been publicly released.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-82631
Severity
LOW
CVSS
2.2
EPSS
0.36%
F5

Original NVD Description

A security flaw has been discovered in valkey-io valkey 9.1.0. The affected element is the function handleClientsBlockedOnKey of the file src/blocked.c of the component Blocked-on-keys Subsystem. The manipulation results in use after free. The attack may be performed from remote. A high complexity level is associated with this attack. The exploitability is described as difficult. The exploit has been released to the public and may be used for attacks. The patch is identified as b2fb0e13f5b4c8c2fb63dcfc2c37a067a0d6d20b. Applying a patch is advised to resolve this issue.