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.
History

Tue, 15 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 15 Sep 2026 13:15:00 +0000

Type Values Removed Values Added
First Time appeared Semaphoreui
Semaphoreui semaphore
Vendors & Products Semaphoreui
Semaphoreui semaphore

Tue, 15 Sep 2026 11:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Semaphore UI through 2.19.12 Missing Authorization on GET and HEAD Requests
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-09-15T11:35:49.385Z

Updated: 2026-09-24T14:22:33.738Z

Reserved: 2026-09-15T11:11:13.312Z

Link: CVE-2026-91994

cve-icon Vulnrichment

Updated: 2026-09-15T12:36:51.431Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-15T12:17:54.793

Modified: 2026-09-24T20:28:01.780

Link: CVE-2026-91994

cve-icon Redhat

No data.