What is CVE-2021-3528?

CVE-2021-3528 is a high-severity vulnerability in Red Hat Noobaa-Operator, classified under Insufficiently Protected Credentials. CVSS score: 8.8/10. Published 2021-05-13.

How severe is CVE-2021-3528?

High severity. CVSS v3 base score is 8.8 out of 10.

Information disclosure in Red Hat Noobaa-Operator

CVE-2021-3528

A flaw was found in noobaa-operator in versions before 5.7.0, where internal RPC AuthTokens between the noobaa operator and the noobaa core are leaked into log files. An attacker with access to the log files could use this AuthToken to gain additional access into noobaa deployment and can read/modify system configuration.

Published 2021-05-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.009 (57.8th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 58th percentile — 57.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.009 · newest: 0.009 · change: 0.000

Affected products

Red Hat Noobaa-Operator
Noobaa — versions noobaa-operator 5.7.0

Weakness classification (CWE)

References

bugzilla.redhat.com/show_bug.cgi (Patch, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-3528?: CVE-2021-3528 is a high-severity vulnerability in Red Hat Noobaa-Operator, classified under Insufficiently Protected Credentials. CVSS score: 8.8/10. Published 2021-05-13.
How severe is CVE-2021-3528?: High severity. CVSS v3 base score is 8.8 out of 10.