CVE-2026-80048

Published: Oct 7, 2026Modified: Oct 7, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploitability: 1.8 / Impact: 3.6

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Related CWEs

CWE-770

Allocation of Resources Without Limits or Throttling

The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor.

References (3)

https://access.redhat.com/security/cve/CVE-2026-80048

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2479377

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2479377

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.