Information disclosure in Samanhappy Mcphub
CVE-2026-120323
A security flaw has been discovered in samanhappy MCPHub up to 1.0.45/1.1.7. Impacted is an unknown function of the file src/utils/passthroughHeaders.ts. The manipulation of the argument passthroughHeaders results in information disclosure. The attack may be launched remotely. Upgrading to version 1.1.8 is recommended to address this issue. The patch is identified as 040f7b9ae004070bdfe5084cde6bc2c609f78e76. It is advisable to upgrade the affected component.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Samanhappy Mcphub — versions 1.0.0, 1.0.1, 1.0.10
Weakness classification (CWE)
References
- vuldb.com/vuln/429655 (technical-description, vdb-entry)
- vuldb.com/vuln/429655/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-120323 (third-party-advisory)
- vuldb.com/submit/1015029 (third-party-advisory)
- github.com/0xGenesi/CVE/blob/main/MCPHub_OpenAPI_passthroughHeaders_Credential_… (related)
- github.com/samanhappy/mcphub/commit/040f7b9ae004070bdfe5084cde6bc2c609f78e76 (patch)
- github.com/samanhappy/mcphub/releases/tag/v1.1.8 (patch)
- github.com/samanhappy/mcphub/ (product)
Frequently asked questions
- What is CVE-2026-120323?
- CVE-2026-120323 is a medium-severity vulnerability in Samanhappy Mcphub, classified under Information Disclosure. CVSS score: 4.3/10. Published 2026-11-02.
- How severe is CVE-2026-120323?
- Medium severity. CVSS v3 base score is 4.3 out of 10.