Jenkins MCP Server Plugin missing a permission check
GHSA-mpff-xhg4-vr45 · CVE-2026-57300
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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.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-57300
- WEB https://github.com/jenkinsci/mcp-server-plugin/commit/ffe5ae770f3bd7e88c99aea3018263af0b2f9cc4
- PACKAGE https://github.com/jenkinsci/mcp-server-plugin
- WEB https://github.com/jenkinsci/mcp-server-plugin/releases/tag/0.178.vffe5a_e770f3b_
- WEB https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3759
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