Missing Permission Check in Jenkins MCP Server Plugin Allows Script Access

Publication date: 2026-06-24

Last updated on: 2026-06-26

Assigner: Jenkins Project

Description

A missing permission check in Jenkins MCP Server Plugin 0.177.v629fdb_2557fe and earlier allows attackers with Item/Read permission to read the Pipeline replay scripts of jobs they can access.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-06-24

Last Modified

2026-06-26

Generated

2026-07-14

AI Q&A

2026-06-24

EPSS Evaluated

2026-07-13

NVD

CVE-2026-57300

EUVD

EUVD-2026-38781

Affected Vendors & Products

Vendor	Product	Version / Range
jenkins	mcp_server	to 0.177.v629fdb_2557fe (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability is a missing permission check in the Jenkins MCP Server Plugin version 0.177.v629fdb_2557fe and earlier. It allows attackers who have Item/Read permission to read the Pipeline replay scripts of jobs they can access.

Impact Analysis

An attacker with Item/Read permission could exploit this vulnerability to access Pipeline replay scripts of jobs they can access. This could lead to unauthorized disclosure of potentially sensitive or proprietary build and deployment scripts.

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