CVE-2026-125926

medium

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.

References

https://github.com/agentic-community/mcp-gateway-registry/releases/tag/1.35.0

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-124011

https://aws.amazon.com/security/security-bulletins/2026-180-aws/

Details

Source: Mitre, NVD

Published: 2026-11-11

Updated: 2026-11-12

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:P/A:N

Severity: High

CVSS v3

Base Score: 8.5

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

Severity: High

CVSS v4

Base 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

Severity: Medium

EPSS

EPSS: 0.00294