What is CVE-2021-20290?

CVE-2021-20290 is a medium-severity vulnerability in Theforeman Openscap, classified under Incorrect Authorization. CVSS score: 6.1/10. Published 2022-03-25.

How severe is CVE-2021-20290?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Auth bypass in Theforeman Openscap

CVE-2021-20290

An improper authorization handling flaw was found in Foreman. The OpenSCAP plugin for the smart-proxy allows foreman clients to execute actions that should be limited to the Foreman Server. This flaw allows an authenticated local attacker to access and delete limited resources and also causes a denial of service on the Foreman server. The highest threat from this vulnerability is to integrity and system availability.

Vulnerability class: Broken Access Control

Published 2022-03-25 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H.

EPSS exploit prediction

EPSS: 0.002 (11.7th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 12th percentile — 11.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Theforeman Openscap
Smart Proxy Openscap — versions smart_proxy_openscap 0.9.1

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

bugzilla.redhat.com/show_bug.cgi (Exploit, Third Party Advisory, Mitigation, Issue Tracking)

Frequently asked questions

What is CVE-2021-20290?: CVE-2021-20290 is a medium-severity vulnerability in Theforeman Openscap, classified under Incorrect Authorization. CVSS score: 6.1/10. Published 2022-03-25.
How severe is CVE-2021-20290?: Medium severity. CVSS v3 base score is 6.1 out of 10.