CVE-2026-120323
samanhappy MCPHub passthroughHeaders.ts information disclosure
No exploitation reported by the sources we read.
- Published2026-11-02
- WeaknessCWE-200 · CWE-284
Am I affected?
Debian, Ubuntu or Red Hat sometimes backport a fix without changing the upstream version number: such a version reads « to verify », never « affected ».With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.
Description
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.
Timeline
dates in UTC- 2026-11-0202:00CVE publishedCNA
Observed activity
isMalicious corpus · updated 2026-11-02 03:37 UTCBlock these indicators
- Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-120323?format=txt
- CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-120323?format=csv
- TAXII collection of exploited CVEs
- The EDL and CSV take an API key on the Pro plan.
Versions per branch
Products declared by the CNA
As VulDB, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.
- samanhappy MCPHubAffected
- = 1.0.0no fix stated
- = 1.0.1no fix stated
- = 1.0.2no fix stated
- = 1.0.3no fix stated
- = 1.0.4no fix stated
- = 1.0.5no fix stated
- = 1.0.6no fix stated
- = 1.0.7no fix stated
47 more version lines in the CVE record.
Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-02
Neither OSV.dev nor the vendor advisories we read list affected versions for CVE-2026-120323 yet.
Fix
No fix published by the sources we read yet. NVD record
Detection
- Nuclei template
- none so far ProjectDiscovery
- Exploit-DB
- no entry Exploit-DB
- Proof-of-concept repositories
- none listed PoC-in-GitHub
- Metasploit modules
- none listed Metasploit Framework
Sources
Identifiers
- EUVD-2026-114925same flawENISA EUVD · LicenseRef-ENISA-legal-notice
Technical details
- CVSS v3 Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
- CVSS 4.0 vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Published
- 2026-11-02
- Last Modified
- 2026-11-02
- NVD status
- Deferred
Frequently asked questions
What is CVE-2026-120323?
Is CVE-2026-120323 actively exploited?
What is the CVSS score for CVE-2026-120323?
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