CVE-2026-26456
High · 7.5CVSS
7.5
EPSS
0.4%
Published
Aug 27, 2026
CISA due date
—
The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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