CVE-2021-3856

MEDIUM4.3EPSS 0.36%

Keycloak has Files or Directories Accessible to External Parties

Published: 8/27/2022Modified: 2/16/2024

Description

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.

Affected packages (1)

Maven/org.keycloak:keycloak-corefrom 0, < 15.1.0

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References (7)

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