{"schema":"threatline.record/2","record":{"id":"CVE-2026-106073","aliases":[],"summary":"A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync()` without the required read permission checks. This is an incomplete fix of CVE-2026-21715, which only covered `fs.re","details":"A flaw in Node.js Permission Model filesystem enforcement leaves `fs.realpathSync()` without the required read permission checks. This is an incomplete fix of CVE-2026-21715, which only covered `fs.realpathSync.native()`.\n\nAs a result, code running under `--permission` with restricted `--allow-fs-read` can still use `fs.realpathSync()` to check file existence, resolve symlink targets, and enumerate filesystem paths outside of permitted directories.\n\nThis vulnerability affects Node.js **26.x**, **24.x**, and **22.x**.","categories":["Runtimes & languages"],"product":"node","vendor":"nodejs","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-106073","source_modified_at":"2026-10-23T16:15:05.728Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"node","vendor":"nodejs","versions":[{"lessThanOrEqual":"22.23.3","status":"affected","version":"22.23.3","versionType":"semver"},{"lessThanOrEqual":"24.22.0","status":"affected","version":"24.22.0","versionType":"semver"},{"lessThanOrEqual":"26.12.0","status":"affected","version":"26.12.0","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":3.3,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00159,"percentile":0.04723,"score_date":"2026-10-24"},"published_at":"2026-10-23T16:15:05.728Z","modified_at":"2026-10-23T16:15:05.728Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-106073","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23T16:15:05.728Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-106073","fetched_at":"2026-10-24T18:03:20.872036Z","source_modified_at":"2026-10-24"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://nodejs.org/en/blog/vulnerability/october-2026-security-releases"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"vendor and product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-23T16:15:05.728Z","content_hash":"46003df404e4ceac05010fe6b2e9a636f79fe4310fe26cd18e6d5eb0f034ab4a"}}