CVE-2026-26453
High · 7.5CVSS
7.5
EPSS
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Published
Aug 27, 2026
CISA due date
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The record
ccoap 77f55c4b466e99327c24ace8a2913d3ba7e2ccd5 contains a null pointer dereference vulnerability in the coap_server_handle_session() function when processing COAP messages containing URI_PATH options with NULL data pointers. When the server searches for a URI_PATH option matching the string "separate", it directly calls strncmp() on option_list[i].data without checking if the pointer is NULL. This causes a segmentation fault when the option's data field is NULL.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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