CVE-2025-64132 Jenkins MCP Server Plugin does not perform permission checks in multiple MCP tools
Attackers can trigger builds and access unauthorized job and cloud configuration data due to missing permission checks in the Jenkins MCP Server Plugin.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-64132?
CVE-2025-64132 is a medium-severity missing authorization vulnerability in Jenkins MCP Server Plugin, published on 29 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Jenkins MCP Server Plugin 0.84.v50ca_24ef83f2 and earlier does not perform permission checks in multiple MCP tools, allowing attackers to trigger builds and obtain information about job and cloud configuration they should not be able to access.
Weakness: CWE-862
Which versions are affected by CVE-2025-64132?
2 open source packages ship an affected version, including io.jenkins.plugins:mcp-server. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
io.jenkins.plugins:mcp-server Maven | All versions | 0.86.v7d3355e6a |
io.jenkins.plugins:mcp-server Maven | All versions | 0.86.v7d3355e6a |
Products include Jenkins Mcp Server.
How do I fix CVE-2025-64132?
Upgrade io.jenkins.plugins:mcp-server to 0.86.v7d3355e6a or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2025-64132 being exploited?
There is no known exploitation of CVE-2025-64132 in the wild and no public exploit code.
Other vulnerabilities in Jenkins MCP Server Plugin
Sources
Also known as GHSA-mrpq-9jr3-rqq9.