CVE-2025-64099
OpenAM: Using arbitrary OIDC requested claims values in id_token and user_info is allowed
Impact
### Summary If the "claims_parameter_supported" parameter is activated, it is possible through the "oidc-claims-extension.groovy" script, to inject the value of choice into a claim contained in the id_token or in the user_info. Authorization function requests do not prevent a claims parameter containing a JSON file to be injected. This JSON file allows users to customize claims returned by the "id_token" and "user_info" files. This allows for a very wide range of vulnerabilities depending on how clients use claims. For example, if some clients rely on an email field to identify a user, users can choose to entera any email address, and therefore assume any chosen identity.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.openidentityplatform.openam:openam-oauth2 | < 16.0.3 | 16.0.3 |
Affected products
| Product | Affected versions |
|---|---|
| Versions | before 16.0.0 |
Versions were read from the advisory text. No structured product data has been published for this record yet.
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-39hr-239p-fhqc
- https://github.com/advisories/GHSA-39hr-239p-fhqc
- https://github.com/OpenIdentityPlatform/OpenAM/commit/4254b34b2b8b4867f2e7fccfac73904213d48510
- https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.0.3
- https://nvd.nist.gov/vuln/detail/CVE-2025-64099