In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in `properties_parse()` allows an authenticated attacker to crash the NanoMQ broker by sending a POST request to `/api/v4/mqtt/publish` with `user_properties` as a JSON array instead of a JSON object. The crash occurs because `strlen()` is called on a NULL `item->string` pointer when iterating over array elements. An authenticated attacker can exploit this to crash the NanoMQ broker process. This is patched in version 0.24.14.
Metrics
Affected Vendors & Products
References
History
Mon, 20 Jul 2026 23:30:00 +0000
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Mon, 20 Jul 2026 18:30:00 +0000
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Mon, 20 Jul 2026 17:15:00 +0000
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| Description | In nanomq versions 0.24.11 and earlier, a NULL pointer dereference in `properties_parse()` allows an authenticated attacker to crash the NanoMQ broker by sending a POST request to `/api/v4/mqtt/publish` with `user_properties` as a JSON array instead of a JSON object. The crash occurs because `strlen()` is called on a NULL `item->string` pointer when iterating over array elements. An authenticated attacker can exploit this to crash the NanoMQ broker process. This is patched in version 0.24.14. | |
| Title | NULL Pointer Dereference in REST API properties_parse via Malformed user_properties | |
| Weaknesses | CWE-476 | |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-20T17:41:06.753Z
Reserved: 2026-05-18T23:03:37.230Z
Link: CVE-2026-47276
Updated: 2026-07-20T17:41:02.308Z
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OpenCVE Enrichment
Updated: 2026-07-20T23:15:04Z