CVE-2026-26456

HighCVSS 7.5/10Last modified Sep 8, 2026

Description

A null pointer dereference vulnerability exists in the server-side session management logic of ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5. The issue is caused by a race condition between the request dispatch thread and the session cleanup thread when accessing shared session list nodes without proper synchronization.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-362 CWE-476

Affected software

No affected versions have been published.

Timeline

Published: Aug 27, 2026
Last modified: Sep 8, 2026
NVD status: Deferred

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