RHSA-2020:1003 — Security Advisory
Red Hat Security Advisory: mod_auth_mellon security and bug fix update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · April 1, 2020
Updated · June 25, 2026
Topic
An update for mod_auth_mellon is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The mod_auth_mellon module for the Apache HTTP Server is an authentication service that implements the SAML 2.0 federation protocol. The module grants access based on the attributes received in assertions generated by an IdP server.
Security Fix(es):
- mod_auth_mellon: Open Redirect via the login?ReturnTo= substring which could facilitate information theft (CVE-2019-13038)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.8 Release Notes linked from the References section.