CVE-2026-26453

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Source

https://cve.org/CVERecord?id=CVE-2026-26453

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26453.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-26453

Published

2026-08-27T00:00:00Z

Modified

2026-10-28T02:31:04Z

Severity

7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

[none]

Details

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.

Database specific

{
    "cna_assigner":  "mitre",
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26453.json"
}

References

Affected packages

Git / github.com/ipflavors/ccoap

Affected ranges

Type

GIT

Repo

https://github.com/ipflavors/ccoap

Events

Introduced

Last Affected

77f55c4b466e99327c24ace8a2913d3ba7e2ccd5

Database specific

Show details

{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "77f55c4b466e99327c24ace8a2913d3ba7e2ccd5"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}

Affected versions

v1.*

v1.1

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26453.json"