GHSA-v4jf-wwp4-588q

GHSA-v4jf-wwp4-588q PUBLISHED CVSS 5.5 MEDIUM

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.

Risk Scores

CVSS 3.1

5.5

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Exploit Intelligence

8173-1.json (github-poc)

Timeline

Mar 26, 2026 CVE Published
Apr 10, 2026 Security Advisory

References

https://nvd.nist.gov/vuln/detail/CVE-2026-4897 advisory
https://access.redhat.com/security/cve/CVE-2026-4897 url
https://bugzilla.redhat.com/show_bug.cgi?id=2451739 url

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