CVE-2026-12112
Foreman-mcp-server: mcp server: active session hijacking via insecure session state reuse
- State
- Published
- Severity
- 7.8 High
- Published
- Jun 23, 2026
- Updated
- Jul 16, 2026
- Reserved
- Jun 12, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat |
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | redhat-SADP |
Weaknesses
- CWE-287 Improper Authentication
Affected Products
| Product | Versions |
|---|---|
Red Hat Satellite 6.18Red Hat |
|
Red Hat Satellite 6.19Red Hat |
|
References
- RHSA-2026:28405vendor-advisory
- RHSA-2026:28438vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-12112vdb-entry
- RHBZ#2488031issue-tracking
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12112.json
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