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.
History

Mon, 31 Aug 2026 20:15:00 +0000

Type Values Removed Values Added
Title Null Pointer Dereference in ccoap Session Management

Mon, 31 Aug 2026 18:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 27 Aug 2026 17:45:00 +0000

Type Values Removed Values Added
Title Null Pointer Dereference in ccoap Session Management
Weaknesses CWE-362
CWE-476

Thu, 27 Aug 2026 16:45:00 +0000

Type Values Removed Values Added
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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-08-27T00:00:00.000Z

Updated: 2026-08-31T17:35:30.112Z

Reserved: 2026-02-16T00:00:00.000Z

Link: CVE-2026-26456

cve-icon Vulnrichment

Updated: 2026-08-31T17:35:22.581Z

cve-icon NVD

Status : Deferred

Published: 2026-08-27T17:17:48.147

Modified: 2026-09-08T19:42:20.313

Link: CVE-2026-26456

cve-icon Redhat

No data.