CVE-2026-4897
Polkit: polkit: denial of service via unbounded input processing through standard input
Vexday Risk Score
13Baixo
Decisão SSVC (CISA)
Track
Sem sinal de exploração → monitorar
CVSS 5.5EPSS 0.1%KEV nãoPoC —Nuclei —Metasploit —Patch —
Ciclo de vida
26 mar 2026Publicada no NVD
Recomendação: Monitorar — sem sinal de exploração no momento.
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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H