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Vulnerability record · CVE-2026-12112 · published 23 June 2026

CVE-2026-12112: Redhat satellite improper authentication vulnerability

Redhat · Satellite

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.

7.8 CVSS 3.1 High EPSS 0.22% · top 89.2% CWE-287 · Improper authentication
7.8CVSS 3.1 base score
0.22%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
9References
16 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:28405
https://access.redhat.com/errata/RHSA-2026:28438 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-12112 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2488031 Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:28405
https://access.redhat.com/errata/RHSA-2026:28438 Third Party Advisory
https://access.redhat.com/security/cve/CVE-2026-12112 Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2488031 Third Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12112.json Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-12112), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.