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CVE-2026-78336

Apache Syncope: OIDCC4UI provider list discloses client secrets to any authenticated user

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

Original advisory

cve-program · CVE-2026-78336

Published

Insertion of sensitive information into sent data vulnerability in Apache Syncope. Any authenticated user can query for the list of available OIDC providers configured for SSO with Console and Enduser. The returned payload contains all configuration settings, including client secrets, regardless of the entitlements owned by the caller. 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-2026-78336

Published

org.apache.syncope.ext.oidcc4ui:syncope-ext-oidcc4ui-logic

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.ext.oidcc4ui:syncope-ext-oidcc4ui-logic",
                    "packageURL": "pkg:maven/org.apache.syncope.ext.oidcc4ui/syncope-ext-oidcc4ui-logic",
                    "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