High
Semaphore UI through 2.19.12 Missing Authorization on GET and HEAD Requests
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.
Announced Group revision 1
Original source ↗CVE-2026-91994
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-91994
semaphore
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://github.com/semaphoreui/semaphore",
"vendor": "semaphoreui",
"product": "semaphore",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "2.19.12"
}
],
"packageURL": "pkg:golang/github.com/semaphoreui/semaphore",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-91994
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #1674 · Revision 1
- Added to Heist Feed
- Publisher date