Janssen Config API returns results without scope verification
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Information disclosure, Privilege escalation, Security bypass
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-200, CWE-269 and CWE-284.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| JanssenProject | jans | before 1.8.0 | 1.8.0 | Patch available | CNA |
| — | io.jans:jans-config-api-server (Maven) | before 1.8.0 | 1.8.0 | Patch available | GHSA-373j-mhpf-84wg |
- jans VendorJanssenProject Affected before 1.8.0 Fixed in 1.8.0 Patch available CNA
- io.jans:jans-config-api-server (Maven) Vendor— Affected before 1.8.0 Fixed in 1.8.0 Patch available GHSA-373j-mhpf-84wg
Remediation
- Fix · CNA jans (JanssenProject) Fixed in 1.8.0
- Fix · GHSA-373j-mhpf-84wg io.jans:jans-config-api-server (Maven) Fixed in 1.8.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2025-53003
- 2026-10-03 Alias added: GHSA-373j-mhpf-84wg
References
Other 6
- https://github.com/JanssenProject/jans/security/advisories/GHSA-373j-mhpf-84wg
- https://github.com/JanssenProject/jans/issues/11575
- https://github.com/JanssenProject/jans/commit/92eea4d4637f1cae16ad2f07b2c16378ff3fc5f1
- https://github.com/JanssenProject/jans/releases/tag/v1.8.0
- https://github.com/GluuFederation/flex/releases/tag/v5.8.0
- https://github.com/JanssenProject/jans
More JanssenProject vulnerabilities
- TI-2026-33530 Janssen Project: JWE Request Object Signature Verification Bypass in jans-auth-server CVSS 3.1MEDIUM 5.3
- TI-2025-34610 Jans CLI stores plaintext passwords in the local cli_cmd.log file CVSS 4.0MEDIUM 6.9
Sources
- CVE-2025-53003 · CVE Program
- CVE-2025-53003 · NVD
- FIRST EPSS
- GHSA-373j-mhpf-84wg · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences