Auth bypass in Openshift-Metal3 Bmctest

CVE-2026-71568

In BMCtest, Ironic is started without authentication and TLS for the duration of the test. Exploiting the problem requires winning the race with bmctest itself, which reduces the attack window and significantly increases its complexity.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.002 (14.3th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-71568: held from 0.002 to 0.002.

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

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-71568?
CVE-2026-71568 is a medium-severity vulnerability in Openshift-Metal3 Bmctest, classified under Missing Authentication for Critical Function. CVSS score: 5.3/10. Published 2026-09-17.
How severe is CVE-2026-71568?
Medium severity. CVSS v3 base score is 5.3 out of 10.