A flaw was found in `sssd-kcm`. A local user or process able to connect to the `sssd-kcm` UNIX socket can exploit this vulnerability. By sending a large request length header and then stalling the connection, an attacker can cause the system to preallocate significant memory. This leads to memory exhaustion within the `sssd-kcm` responder, resulting in a Denial of Service (DoS) for affected deployments.
History

Fri, 09 Oct 2026 09:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat openshift Container Platform
Sssd
Sssd sssd
Vendors & Products Redhat openshift Container Platform
Sssd
Sssd sssd

Wed, 07 Oct 2026 20:30:00 +0000

Type Values Removed Values Added
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'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 07 Oct 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Tue, 06 Oct 2026 23:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in `sssd-kcm`. A local user or process able to connect to the `sssd-kcm` UNIX socket can exploit this vulnerability. By sending a large request length header and then stalling the connection, an attacker can cause the system to preallocate significant memory. This leads to memory exhaustion within the `sssd-kcm` responder, resulting in a Denial of Service (DoS) for affected deployments.
Title Sssd: sssd-kcm: local denial of service via excessive memory preallocation
First Time appeared Redhat
Redhat enterprise Linux
Redhat openshift
Weaknesses CWE-770
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

cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published: 2026-10-06T23:28:11.189Z

Updated: 2026-10-07T19:31:44.230Z

Reserved: 2026-08-25T17:41:08.560Z

Link: CVE-2026-80048

cve-icon Vulnrichment

Updated: 2026-10-07T19:30:01.819Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-07T00:17:21.067

Modified: 2026-10-07T20:17:15.340

Link: CVE-2026-80048

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-10-06T20:07:58Z

Links: CVE-2026-80048 - Bugzilla