HIGH 7.1 NVD
CVE-2026-91994
Semaphore UI through 2.19.12 exempts GET and HEAD requests from project resource permission checks in GetMustCanMiddleware. Attackers with guest or task_runner
Semaphore UI through 2.19.12 exempts GET and HEAD requests from project resource permission checks in GetMustCanMiddleware. Attackers with guest or task_runner roles can read all project environments including plaintext secrets, credentials, and passwords via GET requests to the environment endpoint.
References
- https://github.com/semaphoreui/semaphore
- https://github.com/semaphoreui/semaphore/blob/v2.19.12/api/projects/project.go#L89-L106
- https://github.com/semaphoreui/semaphore/blob/v2.19.12/api/router.go#L308-L329
- https://github.com/semaphoreui/semaphore/issues/4150
- https://www.vulncheck.com/advisories/semaphore-ui-through-2.19.12-missing-authorization-on
This high severity vulnerability with a CVSS score of 7.1 was published on 2026-09-15 via NVD.
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