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
- Semaphoreui Semaphore — versions < 2.18.19, >= 2.19.0-alpha3, < 2.19.5-beta5
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
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.