CVE-2026-4897 — Allocation of Resources Without Limits or Throttling in Policykit-1
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 97.32%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 26
Latest updateApr 14
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.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6