MCPHub authentication bypass allows user impersonation attacks
MCPHub versions below 0.11.0 contain an authentication bypass vulnerability (CVE-2025-13822) allowing unauthenticated attackers to impersonate users and abuse their privileges.
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What to check
- Applies to
- The 1 CVE named below. Whether you run an affected version is not assessed: check the versions the source lists.
- Exploitation
- No exploitation in the wild and no public exploit is recorded for the CVEs named.
CERT Polska coordinated the disclosure of CVE-2025-13822, an authentication bypass vulnerability affecting MCPHub versions prior to 0.11.0. The flaw stems from certain endpoints lacking proper authentication middleware protection, enabling unauthenticated attackers to execute actions on behalf of legitimate users while leveraging their associated privileges.
The vulnerability was responsibly reported by researcher Eryk Winiarz and follows CERT Polska's coordinated vulnerability disclosure process. Organizations running affected MCPHub versions should prioritize upgrading to version 0.11.0 or later to remediate this authentication control weakness.
The authentication bypass represents a complete failure of access control on specific endpoints, allowing privilege escalation and unauthorized actions without any credential requirements. The impact depends on MCPHub deployment contexts and the privileges available to compromised user accounts.
Mentioned in this report
Source reporting: https://cert.pl/en/posts/2026/04/CVE-2025-13822
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