What is CVE-2021-3523?

CVE-2021-3523 is a high-severity vulnerability in Red Hat Apicast, classified under Improper Preservation of Permissions. CVSS score: 7.5/10. Published 2022-04-27.

How severe is CVE-2021-3523?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Red Hat Apicast

CVE-2021-3523

A flaw was found in 3Scale APICast in versions prior to 2.11.0, where it incorrectly identified connections for reuse. This flaw allows an attacker to bypass security restrictions for an API request when hosting multiple APIs on the same IP address.

EPSS: 0.008 (53.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

Redhat Apicast
N/a Apicast — versions 3scale-apicast versions prior to 2.11.0

Weakness classification (CWE)

CWE-281 — Improper Preservation of Permissions

References

secalert@redhat.com (x_refsource_MISC, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-3523?: CVE-2021-3523 is a high-severity vulnerability in Red Hat Apicast, classified under Improper Preservation of Permissions. CVSS score: 7.5/10. Published 2022-04-27.
How severe is CVE-2021-3523?: High severity. CVSS v3 base score is 7.5 out of 10.