CVE-2026-12112CWE-287

Foreman-mcp-server: mcp server: active session hijacking via insecure session state reuse

High · published June 23, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
11.4
In the wild
Unconfirmed
What it is

A flaw was found in the foreman-mcp-server. A session management vulnerability in the MCP Server allows unauthenticated attackers to hijack active administrative sessions due to an improper cache of authenticated client connections, by trusting a non-secret session ID without re-validating authentication tokens and by logging all newly created session IDs to standard logs. This issue can result in privilege escalation and infrastructure-wide code execution.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00216 · 11.4th percentile
Weakness
CWE-287 · Improper Authentication
Published
2026-06-23T19:40Z
EPSS history
Timeline
  • 23 JUN 19:40Z
    Foreman-mcp-server: mcp server: active session hijacking via insecure session state reuse
    cvelistv5