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CVE-2026-105120— OpenAM before 16.1.3 Cross-Realm Session Disclosure via Sessions REST Endpoint

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.

OpenAM 16.1.3 之前的版本中，会话 REST 端点查询操作存在授权绕过漏洞，允许领域（Realm）管理员列出所有领域的会话。持有委派领域管理员权限的攻击者可以提供名为 _queryFilter 的参数以指定其他领域，从而在租户边界之间泄露用户名、通用标识符和会话句柄。

CVSS 4.9 · Medium
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I. Basic Information for CVE-2026-105120

Vulnerability Information
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Vulnerability Title
OpenAM before 16.1.3 Cross-Realm Session Disclosure via Sessions REST Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
OpenAM before 16.1.3 contains an authorization bypass vulnerability in the sessions REST endpoint query operation that allows realm administrators to list sessions of every realm. Attackers holding delegated RealmAdmin privileges can supply a _queryFilter naming another realm to disclose usernames, universal IDs, and session handles across tenant boundaries.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
OpenIdentityPlatform OpenAM 0 ~ 16.1.3 -
OpenIdentityPlatform OpenAM 0 ~ 16.1.3 -

II. Public POCs for CVE-2026-105120

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III. Intelligence Information for CVE-2026-105120

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Other References for CVE-2026-105120 (2)

Same Patch Batch · OpenIdentityPlatform · 2026-10-03 · 9 CVEs total

CVE-2026-105115 8.6 HIGH OpenAM before 16.1.3 Unauthenticated Arbitrary Class Instantiation via JAX-RPC Interface
CVE-2026-105119 6.8 MEDIUM OpenAM before 16.1.3 PKCE Enforcement Bypass via OAuth 2.0 Hybrid Flows
CVE-2026-105117 6.1 MEDIUM OpenAM before 16.1.3 Email Content Injection via Users REST Self-Service Actions
CVE-2026-105114 6.1 MEDIUM OpenAM before 16.1.3 Reflected XSS via OAuth2 Authorization Error Page
CVE-2026-105116 6.1 MEDIUM OpenAM before 16.1.3 Latent XSS in SAML Load-Balancer Cookie Bounce Page
CVE-2026-105122 5.4 MEDIUM OpenAM before 16.1.3 SSRF via OpenID Connect Client jwks_uri
CVE-2026-105121 4.9 MEDIUM OpenAM before 16.1.3 Improper Authorization in Delegated Session-Destroy Realm Scoping
CVE-2026-105118 4.7 MEDIUM OpenAM before 16.1.3 Open Redirect via Unverified id_token_hint in endSession

IV. Related Vulnerabilities

Same product: OpenAM
Same vendor: OpenIdentityPlatform
Same weakness: CWE-200

V. Comments for CVE-2026-105120

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