CVE-2026-120323 (GCVE-0-2026-120323)
Vulnerability from cvelistv5 – Published: 2026-11-02 02:00 – Updated: 2026-11-02 14:23 X_Open Source
VLAI
EPSS
VEX
Title
samanhappy MCPHub passthroughHeaders.ts information disclosure
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-02 14:22 UTC
Assigner
References
8 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/429655 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/429655/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-120323 | third-party-advisory |
| https://vuldb.com/submit/1015029 | third-party-advisory |
| https://github.com/0xGenesi/CVE/blob/main/MCPHub_… | related |
| https://github.com/samanhappy/mcphub/commit/040f7… | patch |
| https://github.com/samanhappy/mcphub/releases/tag… | patch |
| https://github.com/samanhappy/mcphub/ | product |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| samanhappy | MCPHub |
Affected:
1.0.0
Affected: 1.0.1 Affected: 1.0.2 Affected: 1.0.3 Affected: 1.0.4 Affected: 1.0.5 Affected: 1.0.6 Affected: 1.0.7 Affected: 1.0.8 Affected: 1.0.9 Affected: 1.0.10 Affected: 1.0.11 Affected: 1.0.12 Affected: 1.0.13 Affected: 1.0.14 Affected: 1.0.15 Affected: 1.0.16 Affected: 1.0.17 Affected: 1.0.18 Affected: 1.0.19 Affected: 1.0.20 Affected: 1.0.21 Affected: 1.0.22 Affected: 1.0.23 Affected: 1.0.24 Affected: 1.0.25 Affected: 1.0.26 Affected: 1.0.27 Affected: 1.0.28 Affected: 1.0.29 Affected: 1.0.30 Affected: 1.0.31 Affected: 1.0.32 Affected: 1.0.33 Affected: 1.0.34 Affected: 1.0.35 Affected: 1.0.36 Affected: 1.0.37 Affected: 1.0.38 Affected: 1.0.39 Affected: 1.0.40 Affected: 1.0.41 Affected: 1.0.42 Affected: 1.0.43 Affected: 1.0.44 Affected: 1.0.45 Affected: 1.1.0 Affected: 1.1.1 Affected: 1.1.2 Affected: 1.1.3 Affected: 1.1.4 Affected: 1.1.5 Affected: 1.1.6 Affected: 1.1.7 Unaffected: 1.1.8 cpe:2.3:a:samanhappy:mcphub:*:*:*:*:*:*:*:* |
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"url": "https://vuldb.com/cve/CVE-2026-120323"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/submit/1015029"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/vuln/429655"
},
{
"source": "cna@vuldb.com",
"url": "https://vuldb.com/vuln/429655/cti"
},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"url": "https://github.com/0xGenesi/CVE/blob/main/MCPHub_OpenAPI_passthroughHeaders_Credential_Exfiltration.md"
}
],
"sourceIdentifier": "cna@vuldb.com",
"vulnStatus": "Deferred",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-200"
},
{
"lang": "en",
"value": "CWE-284"
}
],
"source": "cna@vuldb.com",
"type": "Secondary"
}
]
}
},
"vulnrichment": {
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-120323",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-11-02T14:22:43.150982Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-11-02T14:23:03.862Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"references": [
{
"tags": [
"exploit"
],
"url": "https://github.com/0xGenesi/CVE/blob/main/MCPHub_OpenAPI_passthroughHeaders_Credential_Exfiltration.md"
}
],
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:samanhappy:mcphub:*:*:*:*:*:*:*:*"
],
"product": "MCPHub",
"vendor": "samanhappy",
"versions": [
{
"status": "affected",
"version": "1.0.0"
},
{
"status": "affected",
"version": "1.0.1"
},
{
"status": "affected",
"version": "1.0.2"
},
{
"status": "affected",
"version": "1.0.3"
},
{
"status": "affected",
"version": "1.0.4"
},
{
"status": "affected",
"version": "1.0.5"
},
{
"status": "affected",
"version": "1.0.6"
},
{
"status": "affected",
"version": "1.0.7"
},
{
"status": "affected",
"version": "1.0.8"
},
{
"status": "affected",
"version": "1.0.9"
},
{
"status": "affected",
"version": "1.0.10"
},
{
"status": "affected",
"version": "1.0.11"
},
{
"status": "affected",
"version": "1.0.12"
},
{
"status": "affected",
"version": "1.0.13"
},
{
"status": "affected",
"version": "1.0.14"
},
{
"status": "affected",
"version": "1.0.15"
},
{
"status": "affected",
"version": "1.0.16"
},
{
"status": "affected",
"version": "1.0.17"
},
{
"status": "affected",
"version": "1.0.18"
},
{
"status": "affected",
"version": "1.0.19"
},
{
"status": "affected",
"version": "1.0.20"
},
{
"status": "affected",
"version": "1.0.21"
},
{
"status": "affected",
"version": "1.0.22"
},
{
"status": "affected",
"version": "1.0.23"
},
{
"status": "affected",
"version": "1.0.24"
},
{
"status": "affected",
"version": "1.0.25"
},
{
"status": "affected",
"version": "1.0.26"
},
{
"status": "affected",
"version": "1.0.27"
},
{
"status": "affected",
"version": "1.0.28"
},
{
"status": "affected",
"version": "1.0.29"
},
{
"status": "affected",
"version": "1.0.30"
},
{
"status": "affected",
"version": "1.0.31"
},
{
"status": "affected",
"version": "1.0.32"
},
{
"status": "affected",
"version": "1.0.33"
},
{
"status": "affected",
"version": "1.0.34"
},
{
"status": "affected",
"version": "1.0.35"
},
{
"status": "affected",
"version": "1.0.36"
},
{
"status": "affected",
"version": "1.0.37"
},
{
"status": "affected",
"version": "1.0.38"
},
{
"status": "affected",
"version": "1.0.39"
},
{
"status": "affected",
"version": "1.0.40"
},
{
"status": "affected",
"version": "1.0.41"
},
{
"status": "affected",
"version": "1.0.42"
},
{
"status": "affected",
"version": "1.0.43"
},
{
"status": "affected",
"version": "1.0.44"
},
{
"status": "affected",
"version": "1.0.45"
},
{
"status": "affected",
"version": "1.1.0"
},
{
"status": "affected",
"version": "1.1.1"
},
{
"status": "affected",
"version": "1.1.2"
},
{
"status": "affected",
"version": "1.1.3"
},
{
"status": "affected",
"version": "1.1.4"
},
{
"status": "affected",
"version": "1.1.5"
},
{
"status": "affected",
"version": "1.1.6"
},
{
"status": "affected",
"version": "1.1.7"
},
{
"status": "unaffected",
"version": "1.1.8"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "chenhuanlin (VulDB User)"
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"vectorString": "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",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C",
"version": "3.1"
}
},
{
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"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:X/RL:O/RC:C",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 5,
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N/E:ND/RL:OF/RC:C",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-200",
"description": "Information Disclosure",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-284",
"description": "Improper Access Controls",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-11-02T02:00:22.478Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-429655 | samanhappy MCPHub passthroughHeaders.ts information disclosure",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/429655"
},
{
"name": "VDB-429655 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/429655/cti"
},
{
"name": "CVE-2026-120323 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-120323"
},
{
"name": "Submit #1015029 | samanhappy MCPHub v1.0.45 information disclosure / credential theft",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/1015029"
},
{
"tags": [
"related"
],
"url": "https://github.com/0xGenesi/CVE/blob/main/MCPHub_OpenAPI_passthroughHeaders_Credential_Exfiltration.md"
},
{
"tags": [
"patch"
],
"url": "https://github.com/samanhappy/mcphub/commit/040f7b9ae004070bdfe5084cde6bc2c609f78e76"
},
{
"tags": [
"patch"
],
"url": "https://github.com/samanhappy/mcphub/releases/tag/v1.1.8"
},
{
"tags": [
"product"
],
"url": "https://github.com/samanhappy/mcphub/"
}
],
"tags": [
"x_open-source"
],
"timeline": [
{
"lang": "en",
"time": "2026-11-01T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-11-01T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-11-01T14:24:50.000Z",
"value": "VulDB entry last update"
}
],
"title": "samanhappy MCPHub passthroughHeaders.ts information disclosure",
"x_generator": [
"VulDB PVTS v202611"
]
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-120323",
"datePublished": "2026-11-02T02:00:22.478Z",
"dateReserved": "2026-11-01T13:19:46.194Z",
"dateUpdated": "2026-11-02T14:23:13.148Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.