GitHub Advisoryadvisory · Maven

GHSA-mpff-xhg4-vr45 Jenkins MCP Server Plugin missing a permission check

MEDIUM Published 2026-06-24 Modified 2026-09-25 Official page ↗
Aliases
CVE-2026-57300
Ecosystem
Maven
Packages
io.jenkins.plugins:mcp-server
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-862
Reviewed
2026-09-25

Affected packages

• Maven io.jenkins.plugins:mcp-server: < 0.178.vffe5a → fixed in 0.178.vffe5a

Description

Jenkins MCP Server Plugin 0.177.v629fdb_2557fe and earlier does not perform a permission check in the getReplayScripts MCP tool that returns the replay script of a Pipeline build. This allows attackers with Item/Read permission to obtain the Pipeline script of jobs. MCP Server Plugin 0.178.vffe5a_e770f3b_ requires Item/Extended Read permission to return the replay script of a Pipeline build through the getReplayScripts MCP tool.

Related

Alias · CVE (1)

  • CVE-2026-57300 A missing permission check in Jenkins MCP Server Plugin 0.177.v629fdb_2557fe and earlier allows attackers with Item/Read permission to read… vulnerability

Weakness · CWE (1)

  • CWE-862 Missing Authorization weakness

References