Vulnerability · Published Sep 15, 2026 · Assigned by GitHub_M
CVE-2026-46498OpenAM Arbitrary OAuth Token Minting via Push Registration
High 7.6
In plain English
A high-severity authorization bypass via user-controlled key in OpenAM from OpenIdentityPlatform. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, OAuthTokenStore reads caller-supplied token identifiers from the shared Core Token Store (CTS) without an OAuth-only namespace, and OAuthAdapter accepts a row whose BLOB claims to contain an OAuth token without binding the trusted CTS type or verifying integrity. An attacker who can place controlled JSON in CTS under a known token identifier, such as through Push Registration followed by an anonymous SNS callback in an enabled realm, can mint OAuth bearer tokens and OpenID Connect ID tokens with chosen subject, client, realm, and scope. The flaw does not by itself create an OpenAM SSO session or grant console access. This issue is fixed in version 16.1.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.openidentityplatform.openam:openam-oauth2 | 16.1.1 | GHSA-cj8f-2fhf-826r |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| OpenIdentityPlatform | OpenAM | < 16.1.1 |
Weakness: CWE-639 · Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
References
- https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-cj8f-2fhf-826r x_refsource_CONFIRM
- https://github.com/OpenIdentityPlatform/OpenAM/commit/e047b01f24ce5006dbd62b3084b17df2d7835763 x_refsource_MISC
- https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1 x_refsource_MISC