Detections
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SCA: security update for github.com/modelcontextprotocol/registry (GHSA-v8vw-gw5j-w7m6)

high Tenable Cloud Security Plugin ID 441540

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - The MCP Registry provides MCP clients with a list of MCP servers, like an app store for MCP servers. From
 1.1.0 to 1.7.4, the TrailingSlashMiddleware in internal/api/server.go is vulnerable to an open redirect
 attack. An attacker can craft a URL with a protocol-relative path (e.g., //evil.com/) that, after trailing
 slash removal, results in a Location header of //evil.com — which browsers interpret as an absolute URL to
 an external domain. This vulnerability is fixed in 1.7.5. (CVE-2026-44427)

Solution

Update the github.com/modelcontextprotocol/registry library and its related packages to version 1.7.5 or later.

See Also

https://github.com/advisories/GHSA-v8vw-gw5j-w7m6

Plugin Details

Severity: High

ID: 441540

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 5/8/2026

Updated: 6/30/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.3

Percentile: 9.38

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5.8

Temporal Score: 4.3

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

CVSS Score Source: CVE-2026-44427

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 5/8/2026

Vulnerability Publication Date: 5/8/2026

Reference Information

CVE: CVE-2026-44427

cwe: CWE-601