8.1
/ 10
HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U
Description
Open Access Management (OpenAM) is an access management solution. In versions prior to 16.0.0, if the "claims_parameter_supported" parameter is activated, it is possible, thanks to the "oidc-claims-extension.groovy" script, to inject the value of one's choice into a claim contained in the id_token or in the user_info. In the request of an authorize function, a claims parameter containing a JSON file can be injected. This JSON file allows attackers to customize the 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, an attacker can choose the email address they want, and therefore assume any identity they choose. Version 16.0.0 fixes the issue.
Basic Information
ID
CVE-2025-64099
Source
GitHub_M
Published
Nov 12, 2025 at 18:57
Modified
Nov 12, 2025 at 21:04
Affected Product
Vendor
OpenIdentityPlatform
Product
OpenAM
Version
< 16.0.0
Affected Versions
OpenIdentityPlatform OpenAM < 16.0.0