{"id":"CVE-2026-104048","aliases":[],"cve":{"records":[{"id":"CVE-2026-104048","source":"redhat","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-10-01T17:26:39.605Z","published":"2026-10-06T19:34:25.863Z","modified":"2026-11-05T15:53:10.927Z"}],"publishers":[{"name":"redhat","role":"CNA","organizationId":"53f830b8-0a3f-465b-8143-3b8a9948e749","modified":"2026-11-05T15:53:10.927Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-10-07T14:34:57.188Z"}],"references":[{"url":"https://access.redhat.com/security/cve/CVE-2026-104048","tags":["vdb-entry","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478613","tags":["issue-tracking","x_refsource_REDHAT"],"source":"redhat"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2478613","tags":["exploit"],"source":"CISA-ADP"}],"weaknesses":[{"id":"CWE-1025","description":"Comparison Using Wrong Factors","source":"redhat"}],"applicability":[],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-10-07T14:32:33.019028Z","decisions":[{"name":"Exploitation","value":"poc"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"total"}]}]},"title":"Sssd: sssd: authorization bypass via cross-domain username collision in hbac evaluation","titleSource":"redhat","descriptionSource":"redhat","description":"A flaw was found in SSSD. In trust-enabled identity management environments, SSSD evaluates Host-Based Access Control (HBAC) rules by stripping domain qualifiers and comparing only short usernames. An authenticated user in a trusted domain who shares the same username as an authorized local account can bypass access policies and gain unauthorized access to protected services or hosts.","score":6.8,"severity":"medium","published":"2026-10-06T19:34:25.863Z","modified":"2026-11-05T15:53:10.927Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 10","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:10"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 6","platforms":[],"versions":[],"defaultStatus":"unknown","cpes":["cpe:/o:redhat:rhel_els:6"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 7","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/o:redhat:rhel_els:7"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 8","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:8"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"},{"vendor":"Red Hat","name":"Red Hat Enterprise Linux 9","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:enterprise_linux:9"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 4","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:4"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"},{"vendor":"Red Hat","name":"Red Hat OpenShift Container Platform 5","platforms":[],"versions":[],"defaultStatus":"affected","cpes":["cpe:/a:redhat:openshift:5"],"source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"}],"remediation":[{"text":"Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.","source":"redhat","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"}],"references":["https://access.redhat.com/security/cve/CVE-2026-104048","https://bugzilla.redhat.com/show_bug.cgi?id=2478613"],"sources":[{"name":"CVE","id":"CVE-2026-104048","modified":"2026-11-05T15:53:10.927Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"}],"assessments":[{"source":"redhat","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","score":6.8}],"sourceAffected":[],"observedAt":"2026-11-05T16:23:26.857Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T02:55:32.844Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-05T16:35:40.881Z","attemptedAt":"2026-11-05T16:35:40.881Z"},{"source":"GHSA","status":"available","checkedAt":"2026-11-05T16:35:40.682Z","attemptedAt":"2026-11-05T16:35:40.682Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-05T16:35:41.471Z","attemptedAt":"2026-11-05T16:35:41.471Z"},{"source":"EPSS","status":"available","checkedAt":"2026-11-05T16:35:40.843Z","attemptedAt":"2026-11-05T16:35:40.843Z"}],"evidence":[{"source":"GitHub Advisory Database","id":"GHSA-474r-m56w-5qgh","url":"https://github.com/advisories/GHSA-474r-m56w-5qgh","modified":"2026-10-06T21:31:59Z","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","checkedAt":"2026-11-05T16:35:40.682Z"},{"source":"FIRST EPSS","id":"CVE-2026-104048","url":"https://www.first.org/epss/","probability":0.00301,"percentile":0.23022,"date":"2026-11-05","checkedAt":"2026-11-05T16:35:40.843Z"},{"source":"NVD","id":"CVE-2026-104048","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104048","modified":"2026-11-05T16:17:29.213","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","checkedAt":"2026-11-05T16:35:40.881Z"},{"source":"NVD","id":"CVE-2026-104048","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104048","modified":"2026-11-05T16:17:29.213","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","checkedAt":"2026-11-05T16:35:40.881Z"},{"source":"ENISA EUVD","id":"EUVD-2026-93942","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-93942","modified":"Oct 7, 2026, 2:34:57 PM","score":6.8,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","checkedAt":"2026-11-05T16:35:41.471Z"}],"aiSummary":{"text":"A flaw in SSSD allows an authenticated user in a trusted domain to bypass access policies by sharing the same username as an authorized local account. This affects Red Hat Enterprise Linux versions 7, 8, 9, and 10. The weakness is due to comparison using wrong factors.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-05T16:26:05.781Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-104048"}]}}