Vulnerability · Published May 28, 2021 · Assigned by redhat
CVE-2020-27826
Medium 4.2
In plain English
A medium-severity security flaw in keycloak. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 47% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)4.2Medium
Exploit odds (30 days)0.6%top 52.5% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.keycloak:keycloak-core | 12.0.0 | GHSA-m9cj-v55f-8x26 |
Affected products (as reported)
Weakness: CWE-250
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1905089 x_refsource_MISC