Advisory [CVE-2026-73191] URL Redirection to Untrusted Site ('Open Redirect') vulnerability in Apache Syncope
This security Apache Software Foundation advisory covers CVE-2026-73191 affecting Apache Syncope.
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Summary
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.
- 3.0.0-M0 through 3.0.16
- 4.0.0-M0 through 4.0.7
- 4.1.0-M0 through 4.1.2.
- through 4.1.2
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
- 4.0.8
- 4.1.3
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Users are recommended to upgrade to version 4.0.8 / 4.1.3, which fix this issue.
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
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