{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-75021", "assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb", "state": "PUBLISHED", "assignerShortName": "openjs", "dateReserved": "2026-08-17T13:48:54.386Z", "datePublished": "2026-09-08T12:50:23.633Z", "dateUpdated": "2026-09-08T14:21:11.520Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ce714d77-add3-4f53-aff5-83d477b104bb", "shortName": "openjs", "dateUpdated": "2026-09-08T12:50:23.633Z"}, "descriptions": [{"lang": "en", "value": "fastify-cli starts the Node.js Inspector when a debug flag is used, but it ignores the explicit bind address the user supplies and binds the Inspector to a broadly reachable address instead of the intended loopback. As a result the debugging interface can be exposed beyond the local machine, and because the Inspector protocol allows arbitrary code evaluation, a remote party that reaches it can achieve remote code execution on the developer's machine. This affects fastify-cli from 1.5.0 up to 8.0.1. Users should upgrade to fastify-cli 8.0.1, which honors the configured Inspector bind address.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "fastify-cli starts the Node.js Inspector when a debug flag is used, but it ignores the explicit bind address the user supplies and binds the Inspector to a broadly reachable address instead of the intended loopback. As a result the debugging interface can be exposed beyond the local machine, and because the Inspector protocol allows arbitrary code evaluation, a remote party that reaches it can achieve remote code execution on the developer's machine. This affects fastify-cli from 1.5.0 up to 8.0.1. Users should upgrade to fastify-cli 8.0.1, which honors the configured Inspector bind address."}]}], "affected": [{"vendor": "fastify-cli", "product": "fastify-cli", "defaultStatus": "unaffected", "versions": [{"versionType": "semver", "status": "affected", "version": "1.5.0", "lessThan": "8.0.1"}, {"versionType": "semver", "status": "unaffected", "version": "8.0.1"}], "packageURL": "pkg:npm/fastify-cli"}], "references": [{"url": "https://github.com/fastify/fastify-cli/security/advisories/GHSA-88v4-3ph7-r88m"}, {"url": "https://cna.openjsf.org/security-advisories.html"}], "credits": [{"lang": "en", "type": "reporter", "value": "Universe-Theori"}, {"lang": "en", "type": "remediation developer", "value": "mcollina"}, {"lang": "en", "type": "remediation reviewer", "value": "UlisesGascon"}], "title": "fastify-cli vulnerable to remote code execution via ignored explicit Inspector bind address", "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.1, "baseSeverity": "HIGH"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-1327", "lang": "en", "description": "CWE-1327: Binding to an Unrestricted IP Address", "type": "CWE"}]}], "x_generator": {"engine": "cve-kit 1.0.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-08T14:21:00.762047Z", "id": "CVE-2026-75021", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-08T14:21:11.520Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-75021", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-09-08T14:21:00.762047Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-08T14:21:04.778Z"}}], "cna": {"title": "fastify-cli vulnerable to remote code execution via ignored explicit Inspector bind address", "credits": [{"lang": "en", "type": "reporter", "value": "Universe-Theori"}, {"lang": "en", "type": "remediation developer", "value": "mcollina"}, {"lang": "en", "type": "remediation reviewer", "value": "UlisesGascon"}], "metrics": [{"format": "CVSS", "cvssV3_1": {"version": "3.1", "baseScore": 8.1, "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}, "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "affected": [{"vendor": "fastify-cli", "product": "fastify-cli", "versions": [{"status": "affected", "version": "1.5.0", "lessThan": "8.0.1", "versionType": "semver"}, {"status": "unaffected", "version": "8.0.1", "versionType": "semver"}], "packageURL": "pkg:npm/fastify-cli", "defaultStatus": "unaffected"}], "references": [{"url": "https://github.com/fastify/fastify-cli/security/advisories/GHSA-88v4-3ph7-r88m"}, {"url": "https://cna.openjsf.org/security-advisories.html"}], "x_generator": {"engine": "cve-kit 1.0.0"}, "descriptions": [{"lang": "en", "value": "fastify-cli starts the Node.js Inspector when a debug flag is used, but it ignores the explicit bind address the user supplies and binds the Inspector to a broadly reachable address instead of the intended loopback. As a result the debugging interface can be exposed beyond the local machine, and because the Inspector protocol allows arbitrary code evaluation, a remote party that reaches it can achieve remote code execution on the developer's machine. This affects fastify-cli from 1.5.0 up to 8.0.1. Users should upgrade to fastify-cli 8.0.1, which honors the configured Inspector bind address.", "supportingMedia": [{"type": "text/html", "value": "fastify-cli starts the Node.js Inspector when a debug flag is used, but it ignores the explicit bind address the user supplies and binds the Inspector to a broadly reachable address instead of the intended loopback. As a result the debugging interface can be exposed beyond the local machine, and because the Inspector protocol allows arbitrary code evaluation, a remote party that reaches it can achieve remote code execution on the developer's machine. This affects fastify-cli from 1.5.0 up to 8.0.1. Users should upgrade to fastify-cli 8.0.1, which honors the configured Inspector bind address.", "base64": false}]}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-1327", "description": "CWE-1327: Binding to an Unrestricted IP Address"}]}], "providerMetadata": {"orgId": "ce714d77-add3-4f53-aff5-83d477b104bb", "shortName": "openjs", "dateUpdated": "2026-09-08T12:50:23.633Z"}}}, "cveMetadata": {"cveId": "CVE-2026-75021", "state": "PUBLISHED", "dateUpdated": "2026-09-08T14:21:11.520Z", "dateReserved": "2026-08-17T13:48:54.386Z", "assignerOrgId": "ce714d77-add3-4f53-aff5-83d477b104bb", "datePublished": "2026-09-08T12:50:23.633Z", "assignerShortName": "openjs"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "packageURL": "pkg:npm/fastify-cli", "product": "fastify-cli", "vendor": "fastify-cli", "versions": [{"lessThan": "8.0.1", "status": "affected", "version": "1.5.0", "versionType": "semver"}, {"status": "unaffected", "version": "8.0.1", "versionType": "semver"}]}], "source": "ce714d77-add3-4f53-aff5-83d477b104bb"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "fastify-cli starts the Node.js Inspector when a debug flag is used, but it ignores the explicit bind address the user supplies and binds the Inspector to a broadly reachable address instead of the intended loopback. As a result the debugging interface can be exposed beyond the local machine, and because the Inspector protocol allows arbitrary code evaluation, a remote party that reaches it can achieve remote code execution on the developer's machine. This affects fastify-cli from 1.5.0 up to 8.0.1. Users should upgrade to fastify-cli 8.0.1, which honors the configured Inspector bind address."}], "id": "CVE-2026-75021", "lastModified": "2026-09-08T19:07:52.113", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.9, "source": "ce714d77-add3-4f53-aff5-83d477b104bb", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-75021", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-08T14:21:00.762047Z", "version": "2.0.3"}}]}, "published": "2026-09-08T13:17:24.010", "references": [{"source": "ce714d77-add3-4f53-aff5-83d477b104bb", "url": "https://cna.openjsf.org/security-advisories.html"}, {"source": "ce714d77-add3-4f53-aff5-83d477b104bb", "url": "https://github.com/fastify/fastify-cli/security/advisories/GHSA-88v4-3ph7-r88m"}], "sourceIdentifier": "ce714d77-add3-4f53-aff5-83d477b104bb", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-1327"}], "source": "ce714d77-add3-4f53-aff5-83d477b104bb", "type": "Secondary"}]}

{}

{"created": "2026-09-08T14:45:04.993709+00:00", "updated": "2026-09-08T15:15:17.712828+00:00", "vendors": []}