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.
Published: 2026-09-15
Score: 7.1 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

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'}

Subscriptions

No data.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-09-15T12:36:59.210Z

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

Link: CVE-2026-91994

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

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

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

Link: CVE-2026-91994

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses