{"id":"CVE-2026-12112","state":"PUBLISHED","title":"Foreman-mcp-server: mcp server: active session hijacking via insecure session state reuse","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.","publishedAt":"2026-06-23T19:40:51.360Z","updatedAt":"2026-07-16T12:04:38.063Z","severity":{"score":7.8,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","source":"redhat"},"assigner":"redhat","products":["Red Hat Red Hat Satellite 6.18","Red Hat Red Hat Satellite 6.19"],"affected":[{"vendor":"Red Hat","product":"Red Hat Satellite 6.18","packageName":"satellite/foreman-mcp-server-rhel9","defaultStatus":"affected","versions":[{"version":"1782228427","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:satellite:6.18::el9"]},{"vendor":"Red Hat","product":"Red Hat Satellite 6.19","packageName":"satellite/foreman-mcp-server-rhel9","defaultStatus":"affected","versions":[{"version":"1782228692","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:satellite:6.19::el9"]}],"references":["https://access.redhat.com/errata/RHSA-2026:28405","https://access.redhat.com/errata/RHSA-2026:28438","https://access.redhat.com/security/cve/CVE-2026-12112","https://bugzilla.redhat.com/show_bug.cgi?id=2488031","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12112.json"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:10:52.580Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/12xxx/CVE-2026-12112.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-12112","state":"PUBLISHED","datePublished":"2026-06-23T19:40:51.360Z","dateUpdated":"2026-07-16T12:04:38.063Z","assignerShortName":"redhat","assignerOrgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateReserved":"2026-06-12T14:41:26.279Z"},"containers":{"cna":{"title":"Foreman-mcp-server: mcp server: active session hijacking via insecure session state reuse","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."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Satellite 6.18","packageName":"satellite/foreman-mcp-server-rhel9","defaultStatus":"affected","versions":[{"version":"1782228427","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:satellite:6.18::el9"]},{"vendor":"Red Hat","product":"Red Hat Satellite 6.19","packageName":"satellite/foreman-mcp-server-rhel9","defaultStatus":"affected","versions":[{"version":"1782228692","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:satellite:6.19::el9"]}],"references":[{"url":"https://access.redhat.com/errata/RHSA-2026:28405","name":"RHSA-2026:28405","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:28438","name":"RHSA-2026:28438","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/security/cve/CVE-2026-12112","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2488031","name":"RHBZ#2488031","tags":["issue-tracking","x_refsource_REDHAT"]}],"metrics":[{"other":{"content":{"value":"Important","namespace":"https://access.redhat.com/security/updates/classification/"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"Improper Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat","orgId":"53f830b8-0a3f-465b-8143-3b8a9948e749","dateUpdated":"2026-07-15T14:19:41.352Z"},"datePublic":"2026-06-23T14:31:23.576Z","x_redhatCweChain":"CWE-287: Improper Authentication","workarounds":[{"lang":"en","value":"Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible."}],"timeline":[{"lang":"en","time":"2026-05-06T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-06-23T14:31:23.576Z","value":"Made public."}],"credits":[{"lang":"en","value":"This issue was discovered by Laura Pardo (Red Hat) and Toni Gornals (Red Hat)."}],"x_generator":{"engine":"cvelib 1.8.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-25T12:46:05.913416Z","id":"CVE-2026-12112","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-25T12:46:15.753Z"}},{"title":"foreman-mcp-server: MCP Server: Active Session Hijacking via Insecure Session State Reuse","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."}],"affected":[{"vendor":"Red Hat","product":"Red Hat Satellite 6.18","packageName":"satellite/foreman-mcp-server-rhel9","defaultStatus":"affected","versions":[{"version":"1782228427","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:satellite:6.18::el9"]},{"vendor":"Red Hat","product":"Red Hat Satellite 6.19","packageName":"satellite/foreman-mcp-server-rhel9","defaultStatus":"affected","versions":[{"version":"1782228692","status":"unaffected","lessThan":"*","versionType":"rpm"}],"collectionURL":"https://catalog.redhat.com/software/containers/","cpes":["cpe:/a:redhat:satellite:6.19::el9"]}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-12112","tags":["vdb-entry","x_refsource_REDHAT"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2488031","name":"RHBZ#2488031","tags":["issue-tracking","x_refsource_REDHAT"]},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-12112.json","tags":["x_sadp-csaf-vex"]},{"url":"https://access.redhat.com/errata/RHSA-2026:28405","tags":["vendor-advisory","x_refsource_REDHAT"]},{"url":"https://access.redhat.com/errata/RHSA-2026:28438","tags":["vendor-advisory","x_refsource_REDHAT"]}],"metrics":[{"other":{"content":{"namespace":"https://access.redhat.com/security/updates/classification/","value":"Important"},"type":"Red Hat severity rating"}},{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":7.8,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"format":"CVSS"}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","description":"Improper Authentication","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"redhat-SADP","orgId":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","dateUpdated":"2026-07-16T12:04:38.063Z"},"datePublic":"2026-06-23T14:31:23.576Z","solutions":[{"lang":"en","value":"RHSA-2026:28405: Red Hat Satellite 6.18"},{"lang":"en","value":"RHSA-2026:28438: Red Hat Satellite 6.19"}],"timeline":[{"lang":"en","time":"2026-05-06T00:00:00.000Z","value":"Reported to Red Hat."},{"lang":"en","time":"2026-06-23T14:31:23.576Z","value":"Made public."}],"workarounds":[{"lang":"en","value":"Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible."}],"x_adpType":"supplier","x_generator":{"engine":"sadp-cli 1.0.0"}}]}}}