CVE-2026-4897 — Polkit: polkit: denial of service via unbounded input processing through standard input
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 inpu…
Published: 2026-03-26 · CVSS: 5.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7