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CVE-2026-73191

Apache Syncope: CAS service URL injection via Forwarded HTTP headers

cve-program · severity unknownCVSS unknownCheck source for fixed versionsKEV status unknown

Original advisory

cve-program · CVE-2026-73191

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-73191

Published

org.apache.syncope:syncope-sra

https://repo.maven.apache.org/maven2

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Apache Software Foundation",
                    "product": "Apache Syncope",
                    "collectionURL": "https://repo.maven.apache.org/maven2",
                    "packageName": "org.apache.syncope:syncope-sra",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "3.0.0-M0",
                            "lessThanOrEqual": "3.0.16",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "4.0.0-M0",
                            "lessThanOrEqual": "4.0.7",
                            "versionType": "semver"
                        },
                        {
                            "status": "affected",
                            "version": "4.1.0-M0",
                            "lessThanOrEqual": "4.1.2",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON