CVE-2026-46623— OpenAM Account Takeover via Unverified Password Change in OAuth2 Module
Quick assessment
Affected
OpenIdentityPlatform OpenAM
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Open Access Management (OpenAM) 是一款访问管理解决方案。在 16.1.1 版本之前，其 OAuth2 身份验证模块在更新现有本地账户时，会写入包含 和 等的配置属性，从而将密码重写为与用户名相同，并重新激活处于禁用状态的账户。由于缺少 过滤机制，导致这些凭证和状态字段能够进入账户更新流程。当启用账户创建功能时，反复进行 OAuth 登录会导致默认的 处理链接受将用户名同时作为标识符和密码，使得未经身份验证的攻击者无需与身份提供者（Identity Provider）交互即可接管该本地
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I. Basic Information for CVE-2026-46623
Vulnerability Information
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Vulnerability Title
OpenAM Account Takeover via Unverified Password Change in OAuth2 Module
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
未经验证的口令修改
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| OpenIdentityPlatform | OpenAM | < 16.1.1 | - |
|
II. Public POCs for CVE-2026-46623
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-46623 (1)
Vendor Advisories for CVE-2026-46623 (1)
Vendor Pages for CVE-2026-46623 (1)
Same Patch Batch · OpenIdentityPlatform · 2026-09-15 · 18 CVEs total
| CVE-2026-62379 | 9.8 CRITICAL | OpenAM: Unauthenticated Remote Code Execution via Class.forName in AuthXMLUtils.createCust |
| CVE-2026-46619 | 9.3 CRITICAL | OpenAM Authentication Bypass via MSISDN LDAP Injection |
| CVE-2026-45052 | 9.3 CRITICAL | OpenAM Pre-auth User Profile Tampering via Anonymous SOAP Authn in Liberty IDPP/Discovery |
| CVE-2026-62263 | 9.2 CRITICAL | OpenAM: WebAuthn Java deserialization RCE via ObjectInputFilter depth>1 bypass |
| CVE-2026-45051 | 9.2 CRITICAL | OpenAM Pre-auth RCE via Java Deserialization in WebAuthn Authenticator Storage |
| CVE-2026-48717 | 9.1 CRITICAL | OpenAM OAuth Authorization Bypass via PKCE Challenge |
| CVE-2026-45048 | 8.5 HIGH | OpenAM Authenticated Privilege Escalation via Raw Token Disclosure Session RPC |
| CVE-2026-44203 | 8.3 HIGH | OpenAM: Pre-auth Reflected XSS in OAuth2 / OIDC response_mode=form_post via state paramete |
| CVE-2026-45794 | 7.7 HIGH | OpenAM Unsafe Java Deserialization via SNS |
| CVE-2026-46498 | 7.6 HIGH | OpenAM Arbitrary OAuth Token Minting via Push Registration |
| CVE-2026-47426 | 7.6 HIGH | OpenAM OAuth Client Impersonation via JWKS Resolver Cache |
| CVE-2026-47424 | 7.5 HIGH | OpenAM Authenticated RCE via Groovy Sandbox Escape |
| CVE-2026-53660 | 7.4 HIGH | OpenAM Insecure SSO Cookie Initialization |
| CVE-2026-41573 | 7.1 HIGH | OpenAM LDAP Injection via `_queryId` Parameter |
| CVE-2026-44793 | 7.0 HIGH | OpenAM: Pre-authentication Reflected XSS in SAML2 Cluster Cookie-Hash-Redirect Path via `F |
| CVE-2026-62280 | 6.1 MEDIUM | OpenAM Reflected XSS in the OAuth2/OIDC `wap` consent page |
| CVE-2026-44202 | 5.3 MEDIUM | OpenAM Authenticated Server-Side Request Forgery (SSRF) via `/sessionservice` |
IV. Related Vulnerabilities
Same product: OpenAM
-
CVE-2026-48717
OpenAM OAuth Authorization Bypass via PKCE Challenge -
CVE-2026-47426
OpenAM OAuth Client Impersonation via JWKS Resolver Cache -
CVE-2026-47424
OpenAM Authenticated RCE via Groovy Sandbox Escape -
CVE-2026-41573
OpenAM LDAP Injection via `_queryId` Parameter -
CVE-2026-62280
OpenAM Reflected XSS in the OAuth2/OIDC `wap` consent page
Same vendor: OpenIdentityPlatform
-
CVE-2026-48717
OpenAM OAuth Authorization Bypass via PKCE Challenge -
CVE-2026-47426
OpenAM OAuth Client Impersonation via JWKS Resolver Cache -
CVE-2026-47424
OpenAM Authenticated RCE via Groovy Sandbox Escape -
CVE-2026-41573
OpenAM LDAP Injection via `_queryId` Parameter -
CVE-2026-62280
OpenAM Reflected XSS in the OAuth2/OIDC `wap` consent page
Same weakness: CWE-620
-
CVE-2026-91995
pig before 4.1.0 Unverified Password Change via /register/pa -
CVE-2026-54175
backpack/crud: Unverified password change in MyAccountContro -
CVE-2026-86260
sfturing hosp_order Password Recovery CommonUserController.j -
CVE-2026-85591
phpMyFAQ before 4.1.8 Authentication Bypass via Unverified P -
CVE-2026-17599
Nexus Repository 3 - Unverified Onboarding State on change-a
V. Comments for CVE-2026-46623
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