CVE-2026-32696

{"id": "CVE-2026-32696", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-32696", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-03-31T15:23:56.365413Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 3.1, "attackVector": "NETWORK", "baseSeverity": "LOW", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L", "integrityImpact": "NONE", "userInteraction": "REQUIRED", "attackComplexity": "HIGH", "availabilityImpact": "LOW", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 1.4, "exploitabilityScore": 1.6}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "nanomq", "product": "nanomq", "versions": [{"status": "affected", "version": ">= 0.24.6, < 0.24.7"}]}]}], "published": "2026-03-30T21:17:09.603", "references": [{"url": "https://github.com/nanomq/NanoNNG/commit/c20aa27e5290bb480a5315099952480d35f37a8b", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nanomq/NanoNNG/pull/1394", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nanomq/nanomq/releases/tag/0.24.7", "tags": ["Product", "Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nanomq/nanomq/security/advisories/GHSA-77f4-wvq8-mp3p", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-476"}]}], "descriptions": [{"lang": "en", "value": "NanoMQ MQTT Broker (NanoMQ) is an all-around Edge Messaging Platform. In NanoMQ version 0.24.6, after enabling auth.http_auth (HTTP authentication), when a client connects to the broker using MQTT CONNECT without providing username/password, and the configuration params uses the placeholders %u / %P (e.g., username=\"%u\", password=\"%P\"), the HTTP request construction phase enters auth_http.c:set_data(). This results in calling strlen() on a NULL pointer, causing a SIGSEGV crash. This crash can be triggered remotely, resulting in a denial of service. This issue has been patched in version 0.24.7."}, {"lang": "es", "value": "NanoMQ MQTT Broker (NanoMQ) es una plataforma de mensajer\u00eda Edge integral. En la versi\u00f3n 0.24.6 de NanoMQ, despu\u00e9s de habilitar auth.http_auth (autenticaci\u00f3n HTTP), cuando un cliente se conecta al broker usando MQTT CONNECT sin proporcionar nombre de usuario/contrase\u00f1a, y los par\u00e1metros de configuraci\u00f3n usan los marcadores de posici\u00f3n %u / %P (por ejemplo, username='%u', password='%P'), la fase de construcci\u00f3n de la solicitud HTTP entra en auth_http.c:set_data(). Esto resulta en la llamada a strlen() sobre un puntero NULL, causando un fallo SIGSEGV. Este fallo puede ser activado remotamente, resultando en una denegaci\u00f3n de servicio. Este problema ha sido parcheado en la versi\u00f3n 0.24.7."}], "lastModified": "2026-06-17T10:36:13.453", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:emqx:nanomq:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2EB20A7D-1CAC-4435-809D-E28F44298077", "versionEndExcluding": "0.24.7"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}