What is CVE-2023-0091?

CVE-2023-0091 is a low-severity vulnerability in Redhat.com Keycloak, classified under Incorrect Authorization. CVSS score: 3.8/10. Published 2023-01-13.

How severe is CVE-2023-0091?

Low severity. CVSS v3 base score is 3.8 out of 10.

Is CVE-2023-0091 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Redhat.com Keycloak

CVE-2023-0091

A flaw was found in Keycloak, where it did not properly check client tokens for possible revocation in its client credential flow. This flaw allows an attacker to access or modify potentially sensitive information.

Vulnerability class: Broken Access Control

EPSS: 0.005 (36.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 3.8 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

secalert@redhat.com (Vendor Advisory)

Frequently asked questions

What is CVE-2023-0091?: CVE-2023-0091 is a low-severity vulnerability in Redhat.com Keycloak, classified under Incorrect Authorization. CVSS score: 3.8/10. Published 2023-01-13.
How severe is CVE-2023-0091?: Low severity. CVSS v3 base score is 3.8 out of 10.
Is CVE-2023-0091 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.