← Back to CVE List

CVE-2021-39191

Published: 2021-09-03T14:15Z
Last Modified: 2024-11-21T06:18Z
Source: MITRE CVE List
License: MITRE-CVE-TOS
mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In versions prior to 2.4.9.4, the 3rd-party init SSO functionality of mod_auth_openidc was reported to be vulnerable to an open redirect attack by supplying a crafted URL in the `target_link_uri` parameter. A patch in version 2.4.9.4 made it so that the `OIDCRedirectURLsAllowed` setting must be applied to the `target_link_uri` parameter. There are no known workarounds aside from upgrading to a patched version. > MITRE Terms of Use apply – see LICENSE‑MITRE.txt