CVE-2026-26456
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.
- Published Aug 27, 2026
- CVSS 7.5 high
- 0.4% chance of exploitation in the next 30 days (EPSS)