CVE-2026-46498Public exploitNetwork attack vectorHinoki check available

Arbitrary OAuth token minting via CTS type confusion

Published Sep 15, 2026 · Updated Sep 15, 2026

Authorization bypass in Open Identity Platform OpenAM 16.0.6 and earlier allows attackers to mint OAuth and OIDC tokens via crafted CTS rows. OAuthTokenStore looks up caller-supplied identifiers in the shared Core Token Store without an OAuth-only namespace, while OAuthAdapter trusts the row's BLOB without binding its CTS type or checking integrity. Reachability requires an enabled OAuth2 Provider and a way to place controlled JSON under a known CTS identifier, such as Push registration in a Push-enabled realm; minted tokens carry chosen identities and scopes but do not create SSO sessions or console access.

CVSS severity6.5
Medium
EPSS probability0.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Authorization bypass in Open Identity Platform OpenAM 16.0.6 and earlier allows attackers to mint OAuth and OIDC tokens via crafted CTS rows. OAuthTokenStore looks up caller-supplied identifiers in the shared Core Token Store without an OAuth-only namespace, while OAuthAdapter trusts the row's BLOB without binding its CTS type or checking integrity. Reachability requires an enabled OAuth2 Provider and a way to place controlled JSON under a known CTS identifier, such as Push registration in a Push-enabled realm; minted tokens carry chosen identities and scopes but do not create SSO sessions or console access.

The record

CVE
CVE-2026-46498
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Open Identity Platform
Product
OpenAM
Classifications
CWE-639, T1606
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 16.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Open Identity Platform · OpenAMversion=< 16.1.1

Published CVSS scores

6.5GitLab Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1606Forge Web Credentials

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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