Answer in brief
CVE-2026-120323 records a Medium severity (CVSS 5.3) vulnerability in samanhappy MCPHub passthroughHeaders.ts information disclosure. The current sources do not mark it as known exploited. The current feed maps samanhappy/MCPHub (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps samanhappy/MCPHub (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| samanhappy/MCPHubgeneric | 1.0.0 || 1.0.1 || 1.0.2 || 1.0.3 || 1.0.4 || 1.0.5 || 1.0.6 || 1.0.7 || 1.0.8 || 1.0.9 || 1.0.10 || 1.0.11 || 1.0.12 || 1.0.13 || 1.0.14 || 1.0.15 || 1.0.16 || 1.0.17 || 1.0.18 || 1.0.19 || 1.0.20 || 1.0.21 || 1.0.22 || 1.0.23 || 1.0.24 || 1.0.25 || 1.0.26 || 1.0.27 || 1.0.28 || 1.0.29 || 1.0.30 || 1.0.31 || 1.0.32 || 1.0.33 || 1.0.34 || 1.0.35 || 1.0.36 || 1.0.37 || 1.0.38 || 1.0.39 || 1.0.40 || 1.0.41 || 1.0.42 || 1.0.43 || 1.0.44 || 1.0.45 || 1.1.0 || 1.1.1 || 1.1.2 || 1.1.3 || 1.1.4 || 1.1.5 || 1.1.6 || 1.1.7 | Not reported |
Published upstream
Nov 2, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 2, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 2, 2026
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.
Quoted source text, attributed separately from HOL analysis.