What is CVE-2020-27826?

CVE-2020-27826 is a medium-severity vulnerability in Redhat Keycloak, classified under CWE-250. CVSS score: 4.2/10. Published 2021-05-28.

How severe is CVE-2020-27826?

Medium severity. CVSS v3 base score is 4.2 out of 10.

Vulnerability in Redhat Keycloak

CVE-2020-27826

A flaw was found in Keycloak before version 12.0.0 where it is possible to update the user's metadata attributes using Account REST API. This flaw allows an attacker to change its own NameID attribute to impersonate the admin user for any particular application.

EPSS: 0.006 (43.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.2 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N.

Affected products

Redhat Keycloak
Redhat Single_sign-on — versions 7.4, 7.4.4
N/a Keycloak — versions keycloak 12.0.0

Weakness classification (CWE)

CWE-250

References

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

Frequently asked questions

What is CVE-2020-27826?: CVE-2020-27826 is a medium-severity vulnerability in Redhat Keycloak, classified under CWE-250. CVSS score: 4.2/10. Published 2021-05-28.
How severe is CVE-2020-27826?: Medium severity. CVSS v3 base score is 4.2 out of 10.