GHSA-3w4v-rvc4-2xpw

Keycloak has Files or Directories Accessible to External Parties

Source: GitHub Advisory Database (reviewed) Moderate CVE-2021-3856

Packages

Ecosystem	Package	Affected	Fixed in
Maven	org.keycloak:keycloak-core	< 15.1.0	15.1.0

Details

As written in the advisory (Markdown source, shown as plain text).

ClassLoaderTheme and ClasspathThemeResourceProviderFactory allows reading any file available as a resource to the classloader. By sending requests for theme resources with a relative path from an external HTTP client, the client will receive the content of random files if available.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2021-3856 advisory
https://github.com/keycloak/keycloak/pull/8588 web
https://github.com/keycloak/keycloak/commit/73f0474008e1bebd0733e62a22aceda9e5de6743 web
https://access.redhat.com/security/cve/CVE-2021-3856 web
https://bugzilla.redhat.com/show_bug.cgi?id=2010164 web
https://github.com/keycloak/keycloak package
https://issues.redhat.com/browse/KEYCLOAK-19422 web