CVE search · CVE-2026-104039
CVE-2026-104039
medium 5.5
A flaw was found in SSSD. A local user can cause a denial of service (DoS) by disrupting system authentication services. When handling Generic Security Services Application Programming Interface (GSSAPI) authentication in the Pluggable Authentication Module (PAM) responder, cached connection state is freed upon completion without clearing the reference pointer. An attacker can exploit this by sending an additional request over the same connection, causing the service to access invalid memory and unexpectedly terminate.
Details
- Status
- Analyzed
- Published
- Last changed
- Source
- secalert@redhat.com
- Weakness
- CWE-825
Severity
| Version | Score | Vector | Source |
|---|---|---|---|
| CVSS 3.1 | medium 4.7 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
secalert@redhat.comSecondary |
| CVSS 3.1 | medium 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
nvd@nist.govPrimary |
Affected products
Vendor and product from the NVD’s CPE applicability statements. Versions and conditions are on the NVD’s page.
- fedoraproject · sssd
- redhat · openshift_container_platform
- redhat · enterprise_linux
References
- https://access.redhat.com/security/cve/CVE-2026-104039Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2478956ExploitIssue TrackingMitigationVendor Advisory