CVE-2026-73293High· 8.8▾ TwilightSemaphore 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 cre…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 48.4 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 3.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
Last analysed / modified upstream
0.4% → 0.5%
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 create a custom manager role with permission bitmask 15, overriding the built-in manager permissions and granting CanUpdateProject and CanManageProjectUsers owner capabilities. This issue is fixed in versions 2.18.19 and 2.19.5-beta5.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
github.com/semaphoreui/semaphore < 0.0.0-20260705182501-bb2a4e1f08c8Patched in:
github.com/semaphoreui/semaphore 0.0.0-20260705182501-bb2a4e1f08c8Connected by shared product, vendor, weakness, or advisory.
CVE-2026-73294Critical· 9.9Semaphore UI is a web interface for managing DevOps tools
CVE-2026-73292High· 8.3Semaphore UI is a web interface for managing DevOps tools
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