CVE-2026-104048
A flaw was found in SSSD. In trust-enabled identity management environments, SSSD evaluates Host-Based Access…
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.
- Vendor
- fedoraproject
- Product
- sssd
- CVSS 3.1
- 8.1 (high), scored by NVD (primary)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- CVSS 3.1
- 6.8 (medium), scored by secalert@redhat.comCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- CWE
- CWE-1025
- Published
- 2026-10-06
- NVD modified
- 2026-10-09
- NVD status
- Analyzed
Not in the CISA KEV catalogue at the last update.
EPSS
0.28% chance of exploitation in the next 30 days (percentile 18th)
FIRST EPSS, updated 17 Oct 2026. About EPSS
CVSS is severity, EPSS is likelihood, KEV means already exploited. EPSS is a statistical probability, not a certainty: a low score does not make a bug safe, and a high one does not prove it is being exploited.
References
- access.redhat.com (Vendor Advisory, Issue Tracking)
Data last updated 18 Oct 2026. Sources: NVD API 2.0, FIRST EPSS. Links: NVD, CISA KEV. Metadata only. ThreatWire does not host exploit code.