CVE-2026-4897
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Freedesktop Polkit
PublishedMar 26, 2026
First seenMar 26, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| freedesktop polkit | No range specified | — |
| redhat openshift_container_platform | 4.0 | — |
| redhat enterprise_linux | 6.0, 7.0, 8.0, 9.0, 10.0 | — |
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