CVE-2025-53003: Janssen Config API returns results without scope verification

Severity: high (CVSS 8.2 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.4% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-07-01 · updated 2026-06-17
Weakness: CWE-200

Description

The Janssen Project is an open-source identity and access management (IAM) platform. Prior to version 1.8.0, the Config API returns results without scope verification. This has a large internal surface attack area that exposes all sorts of information from the IDP including clients, users, scripts ..etc. This issue has been patched in version 1.8.0. A workaround for this vulnerability involves users forking and building the config api, patching it in their system following commit 92eea4d.

Affected products

JanssenProject jans: before 1.8.0

References

https://github.com/JanssenProject/jans/commit/92eea4d4637f1cae16ad2f07b2c16378ff3fc5f1
https://github.com/JanssenProject/jans/issues/11575
https://github.com/JanssenProject/jans/releases/tag/v1.8.0
https://github.com/JanssenProject/jans/security/advisories/GHSA-373j-mhpf-84wg
https://github.com/JanssenProject/jans/issues/11575

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