medium6.5
CVE-2026-91994
Semaphore UI through 2.19.12 exempts GET and HEAD requests from project resource permission checks in GetMustCanMiddleware.
Impact
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.
Affected products
| Product | Affected versions |
|---|---|
| Semaphore UI | through 2.19.12 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- 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-get-and-head-requests