Cross-site Request Forgery (CSRF) Affecting io.jenkins.plugins:mcp-server package, versions [,4.2.3.540.va_6eedb_7b_c112)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published29 Jun 2026
- disclosed24 Jun 2026
- creditUnknown
Introduced: 24 Jun 2026
CVE-2026-57295 (opens in a new tab)How to fix?
Upgrade io.jenkins.plugins:mcp-server to version 4.2.3.540.va_6eedb_7b_c112 or higher.
Overview
io.jenkins.plugins:mcp-server is a The MCP (Model Context Protocol) Server Plugin for Jenkins implements the server-side component of the Model Context Protocol. This plugin enables Jenkins to act as an MCP server, providing context, tools, and capabilities to MCP clients, such as LLM-powered applications or IDEs.
Affected versions of this package are vulnerable to Cross-site Request Forgery (CSRF) via the connect process. An attacker can exfiltrate sensitive AWS credentials by tricking a user into executing unwanted actions that connect to an attacker-controlled URL using credentials IDs obtained through other means.