What is CVE-2026-4897?

CVE-2026-4897 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-03-26.

How severe is CVE-2026-4897?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Resource exhaustion in Red Hat Enterprise Linux 10

CVE-2026-4897

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 (…

EPSS: 0.000 (0.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

access.redhat.com/security/cve/CVE-2026-4897 (vdb-entry, x_refsource_REDHAT)
RHBZ#2451739 (issue-tracking, x_refsource_REDHAT)

Frequently asked questions

What is CVE-2026-4897?: CVE-2026-4897 is a medium-severity vulnerability in Red Hat Enterprise Linux 10, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.5/10. Published 2026-03-26.
How severe is CVE-2026-4897?: Medium severity. CVSS v3 base score is 5.5 out of 10.