Jenkins MCP Server Plugin missing a permission check
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.
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-57300US | —OT elevated | — | ||
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… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/jenkinsci/mcp-server-pluginPACKAGE
- https://github.com/jenkinsci/mcp-server-plugin/commit/ffe5ae770f3bd7e88c99aea3018263af0b2f9cc4WEB
- https://github.com/jenkinsci/mcp-server-plugin/releases/tag/0.178.vffe5a_e770f3b_WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-57300ADVISORY
- https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3759WEB
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