CVE-2026-78336 — Apache Syncope: OIDCC4UI provider list discloses client secrets to any authenticated user

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Syncope	affected 3.0.0-M0 through 3.0.16; affected 4.0.0-M0 through 4.0.7; affected 4.1.0-M0 through 4.1.2

CWE

CWE-201

References

https://lists.apache.org/thread/h399sqmf4wgnfxxpd6x9lm3m672rrsjt

ADP enrichment

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/09/14/20

CISA-ADP

No English description supplied.

No references supplied.