UTMStack < 11.2.16 Authentication Bypass via InternalApiKeyFilter
UTMStack before 11.2.16 contains an authentication bypass vulnerability that allows remote attackers to gain full administrative API access by presenting a valid Utm-Internal-Key header matching the INTERNAL_KEY environment variable value, which the InternalApiKeyFilter accepts for any endpoint without path restriction, constant-time comparison, rate limiting, or audit logging. Attackers who obtain the key value can authenticate without a user account or JWT to create accounts, manage users, exfiltrate data, and modify security rules.
CVE-2026-82042
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-2026-82042
UTMStack
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/utmstack/UTMStack",
"vendor": "UTMStack",
"product": "UTMStack",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "11.2.16",
"versionType": "semver"
}
],
"packageURL": "pkg:github/utmstack/UTMStack",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-82042
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #8683 · Revision 1
- Added to Heist Feed
- Publisher date