CVE-2026-4897

Published: Mar 26, 2026Modified: Jun 17, 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: secalert@redhat.com (Secondary)

Description

A flaw was found in polkit. A local user can exploit this by providing a specially crafted, excessively long input to the `polkit-agent-helper-1` setuid binary via standard input (stdin). This unbounded input can lead to an out-of-memory (OOM) condition, resulting in a Denial of Service (DoS) for the system.

Affected (7)

Products: Freedesktop: Polkit · Redhat: Enterprise Linux, Openshift Container Platform

1 product

2 products

Openshift Container Platform

Configuration A

7 vulnerable

Vulnerable Software	Affected Versions
Freedesktop Polkit	All versions
Redhat Enterprise Linux	Version 10.0
Redhat Enterprise Linux	Version 6.0
Redhat Enterprise Linux	Version 7.0
Redhat Enterprise Linux	Version 8.0
Redhat Enterprise Linux	Version 9.0
Redhat Openshift Container Platform	Version 4.0

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 (2)

https://access.redhat.com/security/cve/CVE-2026-4897

Source: secalert@redhat.com

Vendor Advisory

https://bugzilla.redhat.com/show_bug.cgi?id=2451739

Source: secalert@redhat.com

Issue TrackingVendor Advisory

Timeline

No history available yet.