CVE Explorer
CVE-2026-21888
NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. MQTT v5 Variable Byte Integer parsing out-of-bounds: get_var_integer() accepts 5-byte varints without bounds checks; reliably triggers OOB read / crash when built with ASan. This affects 0.24.6 and earlier.
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":"<= 0.24.6"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:270229658fcb107e473b80300a5731be868221b4c7629630b95caeb658172f9f · sha256:7166c44a8c5e8773… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:270229658fcb107e473b80300a5731be868221b4c7629630b95caeb658172f9f · sha256:7166c44a8c5e8773… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:270229658fcb107e473b80300a5731be868221b4c7629630b95caeb658172f9f · sha256:7166c44a8c5e8773… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"name":"https://github.com/nanomq/nanomq/issues/2192","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/nanomq/issues/2192"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:270229658fcb107e473b80300a5731be868221b4c7629630b95caeb658172f9f · sha256:7166c44a8c5e8773… · /containers/cna/references/1
{"name":"https://github.com/nanomq/nanomq/security/advisories/GHSA-cggc-6m7w-j7x5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-cggc-6m7w-j7x5"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:270229658fcb107e473b80300a5731be868221b4c7629630b95caeb658172f9f · sha256:7166c44a8c5e8773… · /containers/cna/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.