CVE-2026-59179

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 `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.

CVSS v3 8.3 HIGH

8.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/naorsabag/openhop/commit/c8190fbefa3a50e7b0c16c001d2e05b0e920cfb4
https://github.com/naorsabag/openhop/pull/190
https://github.com/naorsabag/openhop/releases/tag/v0.3.7
https://github.com/naorsabag/openhop/security/advisories/GHSA-g72f-jw3w-mgh7
https://github.com/naorsabag/openhop/security/advisories/GHSA-g72f-jw3w-mgh7

Configurations

No configuration.

History

29 Oct 2026, 19:17

Type	Values Removed	Values Added
References	~~() https://github.com/naorsabag/openhop/security/advisories/GHSA-g72f-jw3w-mgh7 -~~	() https://github.com/naorsabag/openhop/security/advisories/GHSA-g72f-jw3w-mgh7 -

28 Oct 2026, 14:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-28 14:17

Updated : 2026-10-29 19:17

NVD link : CVE-2026-59179

Mitre link : CVE-2026-59179

CVE.ORG link : CVE-2026-59179

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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