CVE-2026-104048

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Source

https://cve.org/CVERecord?id=CVE-2026-104048

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104048.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-104048

Downstream

Published

2026-10-06T19:34:25Z

Modified

2026-10-11T02:46:05Z

Severity

6.8 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator

Summary

Sssd: sssd: authorization bypass via cross-domain username collision in hbac evaluation

Details

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.

Database specific

{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-1025"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/104xxx/CVE-2026-104048.json"
}

References

Affected packages

Git / github.com/sssd/sssd

Affected ranges

Type

GIT

Repo

https://github.com/sssd/sssd

Events

Introduced

1a1cf163b78ff4768cc8bfc1e631171bc021e2fe

Last Affected

1a1cf163b78ff4768cc8bfc1e631171bc021e2fe

Database specific

Show details

{
    "cpe": "cpe:2.3:a:fedoraproject:sssd:2.12.0:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "2.12.0"
        },
        {
            "last_affected": "2.12.0"
        }
    ],
    "source": "CPE_STRING"
}

Affected versions

2.*

2.12.0

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-104048.json"