{"id":"CVE-2026-75021","summary":"fastify-cli vulnerable to remote code execution via ignored explicit Inspector bind address","details":"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.","aliases":["GHSA-88v4-3ph7-r88m"],"modified":"2026-09-10T03:30:16.914122167Z","published":"2026-09-08T12:50:23.633Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75021.json","cna_assigner":"openjs","cwe_ids":["CWE-1327"]},"references":[{"type":"ADVISORY","url":"https://cna.openjsf.org/security-advisories.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/75xxx/CVE-2026-75021.json"},{"type":"ADVISORY","url":"https://github.com/fastify/fastify-cli/security/advisories/GHSA-88v4-3ph7-r88m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-75021"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/fastify/fastify-cli","events":[{"introduced":"84409825f494664ac9fe74f696ade1571e7ce2cc"},{"fixed":"a710b450301c87203097758250fac456d09c1acb"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"1.5.0"},{"fixed":"8.0.1"}]}}],"versions":["v8.0.0","v7.4.1","v7.4.0","v7.3.0","v7.2.0","v7.1.0","v7.0.1","v7.0.0","v6.3.0","v6.2.0","v6.1.1","v6.1.0","v6.0.1","v6.0.0","v5.9.0","v5.8.0","v5.7.1","v5.7.0","v5.6.1","v5.6.0","v5.5.1","v5.5.0","v5.4.2","v5.4.1","v5.4.0","v5.0.1","v5.0.0","v4.4.0","v4.3.0","v4.2.1","v4.2.0","v4.1.0","v4.0.0","v3.1.0","v3.0.1","v3.0.0","v2.15.0","v2.14.0","v2.13.0","v2.12.0","v2.11.0","v2.10.0","v2.9.1","v2.9.0","v2.8.0","v2.7.0","v2.6.0","v2.5.1","v2.5.0","v2.4.0","v2.3.0","v2.2.0","v2.1.0","v2.0.2","v2.0.1","v2.0.0","v1.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-75021.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}