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CVE-2026-32134

NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In versions 0.24.10 and below, when NanoMQ handles high-concurrency reconnect traffic using a reconnect-collision payload, the broker can crash due to a NULL pointer dereference during MQTT session resumption for clean_start=0 clients. The transport's p_peer callback (tcptran_pipe_peer()) iterates cpipe->subinfol while copying session metadata from the cached old pipe to the new reconnecting pipe, without checking whether the
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6dcbf505220dcbcd453faec1493493423b21029f3f364ad067a21459c14bc687
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"product":"NanoNNG","vendor":"nanomq","versions":[{"status":"affected","version":"< 0.24.11"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/cna/affected/1

{"product":"nanomq","vendor":"nanomq","versions":[{"status":"affected","version":"< 0.24.11"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"product":"NanoNNG","vendor":"nanomq","versions":[{"status":"affected","version":"< 0.24.11"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/cna/affected/1
{"product":"nanomq","vendor":"nanomq","versions":[{"status":"affected","version":"< 0.24.11"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.9,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/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:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /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:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/cna/problemTypes/0/descriptions/0

Source references

6 source assertions
{"name":"https://github.com/nanomq/NanoNNG/commit/522ec62e29e60d1122f2aedaa6e702dcf089f7bb","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/NanoNNG/commit/522ec62e29e60d1122f2aedaa6e702dcf089f7bb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/cna/references/2
{"name":"https://github.com/nanomq/nanomq/issues/2241","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/nanomq/issues/2241"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/cna/references/1
{"tags":["exploit"],"url":"https://github.com/nanomq/nanomq/issues/2241"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/adp/0/references/1
{"name":"https://github.com/nanomq/nanomq/releases/tag/0.24.11","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/nanomq/releases/tag/0.24.11"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/cna/references/3
{"tags":["exploit"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /containers/adp/0/references/0
{"name":"https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-q36f-83mh-pcv2"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ee067600f006fcb1348d61b619d1005c710648c18b823a25a231bce76b4f89ab · sha256:1c85da641f10d90c… · /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.

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