CVE-2026-91994

Summary

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 Software

Weaknesses

• CWE-862: Missing Authorization

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

References

• https://github.com/semaphoreui/semaphore/issues/4150
• 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
• https://www.vulncheck.com/advisories/semaphore-ui-through-2.19.12-missing-authorization-on-get-and-head-requests

• ←Previous
• Next→