CVE-2026-73191

published 2026-09-14

CVE-2026-73191: URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Apache Syncope. When the Syncope SRA is configured for CAS authentication, the target…

Priority P4 30 medium 6.1 CVSS 3.1

AV N AC L PR N UI R S C C L I L A N

URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Apache Syncope.

When the Syncope SRA is configured for CAS authentication, the target Apereo CAS instance's URL is calculated by unconditionally looking at client-supplied forwarded HTTP headers.

This issue affects Apache Syncope: from 3.0.0-M0 through 3.0.16, from 4.0.0-M0 Through 4.0.7, from 4.1.0-M0 through 4.1.2.

Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
apache_software_foundation	apache_syncope	3.0.0-M0 – 3.0.16	—
apache_software_foundation	apache_syncope	4.0.0-M0 – 4.0.7	—
apache_software_foundation	apache_syncope	4.1.0-M0 – 4.1.2	—

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CWE-601