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CVE-2026-73191 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:5.8 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

CNA: CISA-ADPCVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://www.openwall.com/lists/oss-security/2026/09/14/5	CVE	AdvisoryMailing ListRemedy
https://lists.apache.org/thread/vx9bons1znhdkdpsxwjpy6qqqjc8xqtk	[email protected]	AdvisoryMailing ListRemedyVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-601	URL Redirection to Untrusted Site ('Open Redirect')	[email protected]

Affected Products

Product	Versions
Apache Syncope	>= 3.0.0-M0, <= 3.0.16 (semver) >= 4.0.0-M0, <= 4.0.7 (semver) >= 4.1.0-M0, <= 4.1.2 (semver)
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: 4.0.8moderate effort Upgrade: 4.1.3moderate effort

Change History

3 change records found show changes

Date	Action	Recorded By
Sep 14, 2026	CVE Modified	CISA-ADP
Sep 14, 2026	CVE Modified	CVE
Sep 14, 2026	New CVE Received	[email protected]