{"id":"CVE-2026-59179","title":"OpenHop: Path Traversal in Flow ID File Operations","summary":"OpenHop is a tool for creating interactive data-flow diagrams. Prior to 0.3.7, `@openhop/server` passes unauthenticated flow route parameters from `GET /api/flows/:id` and `DELETE /api/flows/:id` in `packages/server/src/routes.ts` to `Fl…","severity":"high","cvss":8.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:H","cvssSource":"cna","cwe":["CWE-22"],"vendor":"naorsabag","product":"openhop","affected":["openhop < 0.3.7"],"published":"2026-10-28","updated":"2026-10-28","sourceUpdated":"2026-10-28T13:14:13.689Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-59179","references":[{"url":"https://github.com/naorsabag/openhop/security/advisories/GHSA-g72f-jw3w-mgh7","label":"https://github.com/naorsabag/openhop/security/advisories/GHSA-g72f-jw3w-mgh7"},{"url":"https://github.com/naorsabag/openhop/pull/190","label":"https://github.com/naorsabag/openhop/pull/190"},{"url":"https://github.com/naorsabag/openhop/commit/c8190fbefa3a50e7b0c16c001d2e05b0e920cfb4","label":"https://github.com/naorsabag/openhop/commit/c8190fbefa3a50e7b0c16c001d2e05b0e920cfb4"},{"url":"https://github.com/naorsabag/openhop/releases/tag/v0.3.7","label":"https://github.com/naorsabag/openhop/releases/tag/v0.3.7"},{"url":"https://github.com/advisories/GHSA-g72f-jw3w-mgh7"}],"tags":["cve.org","ghsa","npm"],"aliases":["GHSA-g72f-jw3w-mgh7"],"ecosystem":"npm","patched":["@openhop/server 0.3.6"],"ingestedAt":"2026-09-10T00:26:24.579Z","slug":"CVE-2026-59179","body":"## Overview\n\nOpenHop is a tool for creating interactive data-flow diagrams. Prior to 0.3.7, `@openhop/server` passes unauthenticated flow route parameters from `GET /api/flows/:id` and `DELETE /api/flows/:id` in `packages/server/src/routes.ts` to `FlowStore.filePath()` in `packages/server/src/store.ts` without an identifier allow-list. The router applies `decodeURIComponent` to the id, and `path.join()` then normalizes traversal outside the configured flow directory after appending the .yaml extension. An attacker can read accessible YAML files as YAML-parsed JSON or permanently delete accessible .yaml files outside that directory, exposing configuration or secrets and disrupting dependent services. In `packages/server/src/index.ts`, CORS `origin: true` permits any browser origin, enabling a malicious webpage to target a loopback-bound instance. Docker deployments default to `HOST=0.0.0.0` and permit direct unauthenticated network access. This issue is fixed in repository release 0.3.7.\n\n## Affected\n\n- `openhop < 0.3.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-59179)\n\nAffected packages:\n\n- `@openhop/server <= 0.3.5`\n\nPatched in:\n\n- `@openhop/server 0.3.6`\n\nSource: https://github.com/advisories/GHSA-g72f-jw3w-mgh7","depth":"twilight","depthScore":46,"depthScoreParts":{"impact":45.7,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}