MCPHub before 1.0.32 OAuth 2.0 Authentication Bypass
MCPHub before 1.0.32 contains an authentication bypass vulnerability in its embedded OAuth 2.0 authorization server where client authentication is disabled by default and PKCE enforcement is optional. Attackers who obtain an authorization code through interception can redeem it for access tokens without providing a client secret or PKCE verifier, gaining access to victim accounts and their privileges.
CVE-2026-90474
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-2026-90474
mcphub
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.
[
{
"vendor": "samanhappy",
"product": "mcphub",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.0.32",
"versionType": "semver"
}
],
"packageURL": "pkg:npm/%40samanhappy/mcphub",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-90474
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #1624 · Revision 1
- Added to Heist Feed
- Publisher date