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TI-2026-41237 Aliases CVE-2026-57300GHSA-mpff-xhg4-vr45

Missing authorization in Jenkins MCP Server Plugin

Priority LOW 20CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-862.

Summary

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 can access.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00281 20th percentileScored 2026-11-07
Fix Fixed Jenkins MCP Server Plugin (Jenkins Project): 0.172.174.v9f72da_90a_710, 0.178.vffe5a_e770f3b_io.jenkins.plugins:mcp-server (Maven): 0.178.vffe5a

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
JenkinsJenkins MCP Server Plugin—0.172.174.v9f72da_90a_710, 0.178.vffe5a_e770f3b_Patch availableCNA
—io.jenkins.plugins:mcp-server (Maven)before 0.178.vffe5a0.178.vffe5aPatch availableGHSA-mpff-xhg4-vr45
  • Jenkins MCP Server Plugin VendorJenkins Affected — Fixed in 0.172.174.v9f72da_90a_710, 0.178.vffe5a_e770f3b_ Patch available CNA
  • io.jenkins.plugins:mcp-server (Maven) Vendor— Affected before 0.178.vffe5a Fixed in 0.178.vffe5a Patch available GHSA-mpff-xhg4-vr45

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jenkins:mcp_server:*:*:*:*:*:jenkins:*:*up to 0.177.v629fdb_2557feVulnerableJenkins
  • cpe:2.3:a:jenkins:mcp_server:*:*:*:*:*:jenkins:*:* Versions up to 0.177.v629fdb_2557fe Vulnerable ·Jenkins

Remediation

  • Fix · CNA Jenkins MCP Server Plugin (Jenkins Project) Fixed in 0.172.174.v9f72da_90a_710, 0.178.vffe5a_e770f3b_
  • Fix · GHSA-mpff-xhg4-vr45 io.jenkins.plugins:mcp-server (Maven) Fixed in 0.178.vffe5a Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-57300
  2. 2026-10-03 Alias added: GHSA-mpff-xhg4-vr45

References

Advisory 2

Other 3

  • TI-2025-39583 Missing authorization in Jenkins MCP Server Plugin CVSS 3.1MEDIUM 5.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences