Vulnerability Description
Unleash is an open-source feature management platform. Prior to 8.0.3, the Unleash admin API contains five authorization vulnerabilities. POST /api/admin/segments/strategies assigns the Promise returned by hasPermission without awaiting it, allowing authenticated users to modify segment assignments without UPDATE_FEATURE_STRATEGY permission for the target project and environment. GET /api/admin/projects/:projectId/features/:featureName/environments/:environment/variants does not bind the requested feature to projectId, allowing cross-project variant configuration disclosure. GET .../strategies/:strategyId uses strategyId without validating the project and feature context, allowing cross-project strategy configuration disclosure. getEnvironmentInfo does not validate that the requested feature belongs to the supplied project, allowing cross-project environment information disclosure. PUT /:projectId/tags accepts feature identifiers without verifying that they belong to the URL project, allowing cross-project tag modification. This issue is fixed in version 8.0.3.
Related Weaknesses (CWE)
References
- https://github.com/Unleash/unleash/commit/7bb2829fc40791aa478e8ffca149c11b0f9cb0
- https://github.com/Unleash/unleash/commit/ace121c922d2e3eb6f68d95b0b6ab2fc8d824e
- https://github.com/Unleash/unleash/commit/bea7effd3687425630423f662136d548e10015
- https://github.com/Unleash/unleash/commit/c93a963e95e1b7bf1bca2a7729282a48d0eb2f
- https://github.com/Unleash/unleash/commit/dd61d0e10f5977a2e5de78df467c3a17c09fbc
- https://github.com/Unleash/unleash/releases/tag/v8.0.3
- https://github.com/Unleash/unleash/security/advisories/GHSA-72h8-wp98-7hch
FAQ
What is CVE-2026-77426?
CVE-2026-77426 is a documented vulnerability. Unleash is an open-source feature management platform. Prior to 8.0.3, the Unleash admin API contains five authorization vulnerabilities. POST /api/admin/segments/strategies assigns the Promise return...
How severe is CVE-2026-77426?
CVSS scoring is not yet available for CVE-2026-77426. Check NVD for updates.
Is there a patch for CVE-2026-77426?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.