Critical severity9.8NVD Advisory· Published Sep 14, 2026· Updated Sep 14, 2026
CVE-2026-78330
CVE-2026-78330
Description
Incorrect privilege assignment vulnerability in Apache Syncope.
When the configured JWKS settings for internal JWT authentication are disclosed (at least protocol and key), an attacker can obtain admin privileges after completing a successful authentication and obtaining a valid low-privileges JWT.
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.
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Affected products
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References
2News mentions
1- Apache Syncope: 22 Critical Vulnerabilities Disclosed in Single Batch, Exploiting Auth and Input ValidationVypr Intelligence · Sep 14, 2026