Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the OAuth2 authentication module updates an existing local account with profile attributes that can include userPassword and inetUserStatus, rewriting the password to the username and reactivating disabled accounts. The missing OAuth.removeRestrictedAccountUpdateAttributes filtering permits these credential and status fields to reach the account update. With account creation enabled, repeated OAuth login causes the default ldapService chain to accept the username as both identifier and password, allowing an unauthenticated attacker to take over the local account without interacting with the identity provider. The rewrite can be denied for usernames shorter than the configured minimum password length. This issue is fixed in version 16.1.1.
Project Subscriptions
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Advisories
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-gf57-4mp6-m85x | OpenAM Account Takeover via Unverified Password Change in OAuth2 Module |
Fixes
Solution
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Workaround
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References
History
Tue, 15 Sep 2026 10:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, the OAuth2 authentication module updates an existing local account with profile attributes that can include userPassword and inetUserStatus, rewriting the password to the username and reactivating disabled accounts. The missing OAuth.removeRestrictedAccountUpdateAttributes filtering permits these credential and status fields to reach the account update. With account creation enabled, repeated OAuth login causes the default ldapService chain to accept the username as both identifier and password, allowing an unauthenticated attacker to take over the local account without interacting with the identity provider. The rewrite can be denied for usernames shorter than the configured minimum password length. This issue is fixed in version 16.1.1. | |
| Title | OpenAM Account Takeover via Unverified Password Change in OAuth2 Module | |
| Weaknesses | CWE-1391 CWE-620 |
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| References |
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| Metrics |
cvssV4_0
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-09-15T09:52:08.356Z
Reserved: 2026-05-15T19:34:14.012Z
Link: CVE-2026-46623
No data.
Status : Received
Published: 2026-09-15T10:17:04.920
Modified: 2026-09-15T10:17:04.920
Link: CVE-2026-46623
No data.
OpenCVE Enrichment
No data.
Github GHSA