CVE-2026-104030
Medium
Description
A flaw was found in sssd. This vulnerability allows a local user to cause a Denial of Service (DoS) by submitting a specially crafted passkey authentication token that lacks null terminators. The authentication service reads past the end of the provided memory buffer, causing the process to crash and disrupting authentication services.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Fedoraproject Sssd
PublishedOct 5, 2026
First seenOct 5, 2026
Weakness typeCWE-125Out-of-bounds read
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| fedoraproject sssd | 2.12.0 | — |
| Red Hat Red Hat Enterprise Linux 10 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 7 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 8 | No range specified | — |
| Red Hat Red Hat Enterprise Linux 9 | No range specified | — |
| Red Hat Red Hat OpenShift Container Platform 4 | No range specified | — |
| redhat openshift_container_platform | 4.0 | — |
| redhat enterprise_linux | 7.0, 8.0, 9.0, 10.0 | — |
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