CVE-2026-46498 OpenAM Arbitrary OAuth Token Minting via Push Registration
Attackers can mint arbitrary OAuth and OIDC tokens by manipulating the token store, bypassing authentication controls in OpenAM.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-46498?
CVE-2026-46498 is a high-severity authentication bypass vulnerability in OpenIdentityPlatform OpenAM, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
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.
Weakness: CWE-639
Which versions are affected by CVE-2026-46498?
2 open source packages ship an affected version, including org.openidentityplatform.openam:openam-oauth2.
| Package | Affected | Fixed in |
|---|---|---|
org.openidentityplatform.openam:openam-oauth2 Maven | All versions | 16.1.1 |
org.openidentityplatform.openam:openam-oauth2 Maven | All versions | 16.1.1 |
How do I fix CVE-2026-46498?
Upgrade org.openidentityplatform.openam:openam-oauth2 to 16.1.1 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-46498 being exploited?
There is no known exploitation of CVE-2026-46498 in the wild and no public exploit code.
Sources
Also known as GHSA-cj8f-2fhf-826r, UBUNTU-CVE-2026-46498.