CVE-2026-82631
valkey-io valkey Blocked-on-keys blocked.c handleClientsBlockedOnKey use after free
LOW 1.2EPSS 0.6%
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.
- Affected
- valkey-io · valkey
- CVSS v4.0 VULDB
- 1.2 LOW
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v3.1 VULDB
- 2.2 LOW
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L - CVSS v2.0 VULDB
- 1.7 LOW
AV:N/AC:H/Au:M/C:N/I:N/A:P - EPSS
- 0.55% chance of exploitation in the next 30 days, 45th percentile
- Published
- 2026-08-31