CVE-2025-13822

Unauthorized actions via unprotected HTTP endpoints

Published Apr 14, 2026 · Updated Apr 14, 2026

Authentication bypass in MCPHub before 0.11.0 allows remote attackers on an adjacent network to act with other users' privileges. The HTTP routing layer leaves some action endpoints outside the authentication middleware, so requests reach privileged handlers without credentials. Public advisories do not identify the affected paths; exploitation permits unauthorized actions within the impersonated user's access.

CVSS severity5.3
Medium
EPSS probability0.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in MCPHub before 0.11.0 allows remote attackers on an adjacent network to act with other users' privileges. The HTTP routing layer leaves some action endpoints outside the authentication middleware, so requests reach privileged handlers without credentials. Public advisories do not identify the affected paths; exploitation permits unauthorized actions within the impersonated user's access.

The record

CVE
CVE-2025-13822
Published
Apr 14, 2026
Updated
Apr 14, 2026
Vendor
MCPHub
Product
MCPHub
Classifications
CWE-639, CAPEC-233, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 14, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <0.11.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

MCPHub · MCPHubversion=0 <0.11.0

Published CVSS scores

5.3CERT.PLCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
CAPEC-233Privilege Escalation
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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