CVE-2026-82677

LOW 2.4

valkey-io valkey Module Timer module.c moduleTimerHandler double free

CVSS Score

2.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-415 CWE-119
Vendor	valkey-io
Product	valkey
Published	Aug 31, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

valkey-io / valkey

9.1.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/397172 vuldb.com: https://vuldb.com/vuln/397172/cti vuldb.com: https://vuldb.com/cve/CVE-2026-82677 vuldb.com: https://vuldb.com/submit/893959 github.com: https://github.com/valkey-io/valkey/issues/4200 github.com: https://github.com/valkey-io/valkey/pull/4211 github.com: https://github.com/user-attachments/files/30118801/PoC.zip github.com: https://github.com/valkey-io/valkey/commit/b349fe2821e3998534b1454c1b64a478daf8c6b7 github.com: https://github.com/valkey-io/valkey/

Credits

🔍 VULL (VulDB User)