Server-side request forgery (SSRF) in the server registration and update API in Amazon mcp-gateway-registry before 1.35.0 might allow an authenticated remote user to send requests from the gateway to internal network services and cloud instance metadata endpoints and read the responses via a crafted request.



To remediate this issue, users should upgrade to version 1.35.0.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact High

Subsequent System Integrity Impact Low

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact High

Integrity Impact Low

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
AWS mcp-gateway-registry unaffected
Version Status Constraints
1.0.3 affected ≤ 1.34.0

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Project Subscriptions

Vendors Products
Aws Subscribe
Mcp-gateway-registry Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://aws.amazon.com/security/security-bulletins/2026-180-aws/ cve-icon cve-icon
https://github.com/agentic-community/mcp-gateway-registry/releases/tag/1.35.0 cve-icon cve-icon
History

Wed, 11 Nov 2026 21:15:00 +0000

Type Values Removed Values Added
Description Server-side request forgery (SSRF) in the server registration and update API in Amazon mcp-gateway-registry before 1.35.0 might allow an authenticated remote user to send requests from the gateway to internal network services and cloud instance metadata endpoints and read the responses via a crafted request. To remediate this issue, users should upgrade to version 1.35.0.
Title Server-side request forgery in the server registration and update API in mcp-gateway-registry
First Time appeared Aws
Aws mcp-gateway-registry
Weaknesses CWE-918
CPEs cpe:2.3:a:aws:mcp-gateway-registry:*:*:*:*:*:*:*:*
Vendors & Products Aws
Aws mcp-gateway-registry
References
Metrics cvssV3_1

{'score': 8.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:L/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: AMZN

Published:

Updated: 2026-11-11T20:50:28.168Z

Reserved: 2026-11-10T14:18:12.481Z

Link: CVE-2026-125926

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-11T21:16:42.867

Modified: 2026-11-11T21:16:42.867

Link: CVE-2026-125926

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses