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.
Published: 2026-10-05
Score: 5.5 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

Vendor Workaround

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.

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History

Mon, 05 Oct 2026 19:30:00 +0000

Type Values Removed Values Added
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.
Title Sssd: sssd: denial of service via out-of-bounds read during passkey parsing
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-125
CPEs cpe:/a:redhat:openshift:4
cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
Redhat openshift
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Redhat Enterprise Linux Openshift
cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-10-05T19:07:33.481Z

Reserved: 2026-10-01T17:20:01.039Z

Link: CVE-2026-104030

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-05T20:17:08.637

Modified: 2026-10-05T20:17:08.637

Link: CVE-2026-104030

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-05T20:30:22Z

Weaknesses