CVE-2026-82677

1.9 lowEPSS 0.3%

Low (1.9). EPSS 0.3% chance of exploitation in the next 30 days.

A vulnerability was determined in valkey-io valkey 9.1.0. Impacted is the function moduleTimerHandler of the file src/module.c of the component Module Timer Subsystem. This manipulation causes double free. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. Patch name: b349fe2821e3998534b1454c1b64a478daf8c6b7. To fix this issue, it is recommended to deploy a patch.

Severity

CVSS 4.0

1.9 low

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

CVSS 3.1

2.4 low

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L

EPSS: 0.3% chance of exploitation in the next 30 days; higher than 21% of CVEs (scores of 2026-10-31)
CWEs: CWE-119, CWE-415
Published: 2026-08-31
Modified: 2026-08-31
Record from: the NVD, synced 2026-10-19

References

https://github.com/user-attachments/files/30118801/PoC.zip
https://github.com/valkey-io/valkey/
https://github.com/valkey-io/valkey/commit/b349fe2821e3998534b1454c1b64a478daf8c6b7
https://github.com/valkey-io/valkey/issues/4200
https://github.com/valkey-io/valkey/pull/4211

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