Local User Exploitation Flaw in Polkit Affects Specific Systems

CVE-2026-4897

What is CVE-2026-4897?

A vulnerability exists in Polkit that allows a local user to exploit the system by providing an excessively long input to the polkit-agent-helper-1 setuid binary through standard input. This flaw can lead to an out-of-memory (OOM) condition, effectively resulting in a Denial of Service (DoS) for the affected system. It highlights the importance of managing user inputs and the potential for local exploits to cause significant disruptions.

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