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CVE-2026-47276

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.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:2e6f5f192ed72246aca409f5742daa99ca362b8614a2e1d341004bfcebe6a1de
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0

Affected products and versions

1 source assertion
{"product":"nanomq","vendor":"nanomq","versions":[{"status":"affected","version":"<= 0.24.11"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:f899b933755c5b669e10fec84b1e87812cd90469d6345e62657fe9929f057e31 · sha256:5af27a614cf76170… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:f899b933755c5b669e10fec84b1e87812cd90469d6345e62657fe9929f057e31 · sha256:5af27a614cf76170… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-476","description":"CWE-476: NULL Pointer Dereference","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:f899b933755c5b669e10fec84b1e87812cd90469d6345e62657fe9929f057e31 · sha256:5af27a614cf76170… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/nanomq/nanomq/security/advisories/GHSA-qq2v-xvxg-3hvf","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-qq2v-xvxg-3hvf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f899b933755c5b669e10fec84b1e87812cd90469d6345e62657fe9929f057e31 · sha256:5af27a614cf76170… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-qq2v-xvxg-3hvf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:f899b933755c5b669e10fec84b1e87812cd90469d6345e62657fe9929f057e31 · sha256:5af27a614cf76170… · /containers/adp/0/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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