CVE-2026-12112

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 v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:redhat:satellite:6.19:::::::*
	cpe:2.3:a:theforeman:foreman:-:::::::*

History

No history.

Information

Published : 2026-06-23 21:16

Updated : 2026-07-16 12:17

NVD link : CVE-2026-12112

Mitre link : CVE-2026-12112

CVE.ORG link : CVE-2026-12112

JSON object : View

Products Affected

redhat

satellite

theforeman

foreman

CWE

CWE-287

Improper Authentication

{"id": "CVE-2026-12112", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-12112", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-06-25T12:46:05.913416Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "secalert@redhat.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "affected": [{"source": "secalert@redhat.com", "affectedData": [{"cpes": ["cpe:/a:redhat:satellite:6.18::el9"], "vendor": "Red Hat", "product": "Red Hat Satellite 6.18", "versions": [{"status": "unaffected", "version": "1782228427", "lessThan": "*", "versionType": "rpm"}], "packageName": "satellite/foreman-mcp-server-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:satellite:6.19::el9"], "vendor": "Red Hat", "product": "Red Hat Satellite 6.19", "versions": [{"status": "unaffected", "version": "1782228692", "lessThan": "*", "versionType": "rpm"}], "packageName": "satellite/foreman-mcp-server-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}]}, {"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "affectedData": [{"cpes": ["cpe:/a:redhat:satellite:6.18::el9"], "vendor": "Red Hat", "product": "Red Hat Satellite 6.18", "versions": [{"status": "unaffected", "version": "1782228427", "lessThan": "*", "versionType": "rpm"}], "packageName": "satellite/foreman-mcp-server-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}, {"cpes": ["cpe:/a:redhat:satellite:6.19::el9"], "vendor": "Red Hat", "product": "Red Hat Satellite 6.19", "versions": [{"status": "unaffected", "version": "1782228692", "lessThan": "*", "versionType": "rpm"}], "packageName": "satellite/foreman-mcp-server-rhel9", "collectionURL": "https://catalog.redhat.com/software/containers/", "defaultStatus": "affected"}]}], "published": "2026-06-23T21:16:54.823", "references": [{"url": "https://access.redhat.com/errata/RHSA-2026:28405", "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:28438", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-12112", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488031", "tags": ["Third Party Advisory"], "source": "secalert@redhat.com"}, {"url": "https://access.redhat.com/errata/RHSA-2026:28405", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/errata/RHSA-2026:28438", "tags": ["Third Party Advisory"], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://access.redhat.com/security/cve/CVE-2026-12112", "tags": ["Third Party Advisory"], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2488031", "tags": ["Third Party Advisory"], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}, {"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12112.json", "tags": ["Third Party Advisory"], "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "secalert@redhat.com", "description": [{"lang": "en", "value": "CWE-287"}]}, {"type": "Secondary", "source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "description": [{"lang": "en", "value": "CWE-287"}]}], "descriptions": [{"lang": "en", "value": "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."}], "lastModified": "2026-07-16T12:17:00.780", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:redhat:satellite:6.19:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "BCFB23DD-F6A0-4CDB-98E8-E072C104ED4B"}, {"criteria": "cpe:2.3:a:theforeman:foreman:-:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FD7E727C-BF9F-4A86-BCBE-1CE6E1108181"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}