Privilege escalation in Semaphoreui Semaphore

CVE-2026-73293

Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.19 and from 2.19.0-alpha3 until 2.19.5-beta5, ProjectMiddleware and GetProjectOrGlobalRoleBySlug allow a project manager to use POST /api/project/{id}/roles to creat…

Vulnerability class: Privilege Escalation

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-73293?
CVE-2026-73293 is a high-severity vulnerability in Semaphoreui Semaphore, classified under Improper Privilege Management. CVSS score: 8.8/10. Published 2026-08-12.
How severe is CVE-2026-73293?
High severity. CVSS v3 base score is 8.8 out of 10.