{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25627","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-02-04T05:15:41.789Z","datePublished":"2026-03-30T20:11:08.586Z","dateUpdated":"2026-03-31T19:09:34.784Z"},"containers":{"cna":{"title":"nanomq: OOB Read / Crash (DoS) via Malformed MQTT Remaining Length over WebSocket","problemTypes":[{"descriptions":[{"cweId":"CWE-125","lang":"en","description":"CWE-125: Out-of-bounds Read","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"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"}}],"references":[{"name":"https://github.com/nanomq/nanomq/security/advisories/GHSA-w4rh-v3h2-j29x","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-w4rh-v3h2-j29x"},{"name":"https://github.com/nanomq/NanoNNG/pull/1405","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/NanoNNG/pull/1405"},{"name":"https://github.com/nanomq/NanoNNG/commit/e80b30bad6d855593a68d18f2785bfaca6faf09e","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/NanoNNG/commit/e80b30bad6d855593a68d18f2785bfaca6faf09e"},{"name":"https://github.com/nanomq/nanomq/releases/tag/0.24.8","tags":["x_refsource_MISC"],"url":"https://github.com/nanomq/nanomq/releases/tag/0.24.8"}],"affected":[{"vendor":"nanomq","product":"nanomq","versions":[{"version":"< 0.24.8","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-03-30T20:11:08.586Z"},"descriptions":[{"lang":"en","value":"NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. Prior to version 0.24.8, NanoMQ’s MQTT-over-WebSocket transport can be crashed by sending an MQTT packet with a deliberately large Remaining Length in the fixed header while providing a much shorter actual payload. The code path copies Remaining Length bytes without verifying that the current receive buffer contains that many bytes, resulting in an out-of-bounds read (ASAN reports OOB / crash). This is remotely triggerable over the WebSocket listener. This issue has been patched in version 0.24.8."}],"source":{"advisory":"GHSA-w4rh-v3h2-j29x","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/nanomq/nanomq/security/advisories/GHSA-w4rh-v3h2-j29x","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-31T18:38:44.968276Z","id":"CVE-2026-25627","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-31T19:09:34.784Z"}}]}}