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CVE-2026-105115— OpenAM before 16.1.3 Unauthenticated Arbitrary Class Instantiation via JAX-RPC Interface

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.

在 OpenAM 16.1.3 之前的版本中，遗留的 JAX-RPC SOAP 接口存在一个未授权任意类实例化漏洞，允许远程攻击者在无需身份验证的情况下加载类。攻击者可以通过向 /jaxrpc/* 发送 SOAP 请求，并使用未经验证的会话标识符和选定的类名，导致服务器崩溃、探测类路径，或通过利用 gadget 链实现潜在的代码执行。

CVSS 8.6 · High

Affected Version Matrix 2

VendorProduct Version RangeStatus
OpenIdentityPlatform OpenAM < 16.1.3 affected
16.1.3 unaffected
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I. Basic Information for CVE-2026-105115

Vulnerability Information
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Vulnerability Title
OpenAM before 16.1.3 Unauthenticated Arbitrary Class Instantiation via JAX-RPC Interface
Source: CVE Program / CVE List V5
Vulnerability Description
OpenAM before 16.1.3 contains an unauthenticated arbitrary class instantiation vulnerability in the legacy JAX-RPC SOAP interface that allows remote attackers to load classes without authentication. Attackers can send SOAP requests to /jaxrpc/* with an unverified session identifier and a chosen class name, crashing the server, probing the classpath, or potentially reaching code execution via gadget chains.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

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

II. Public POCs for CVE-2026-105115

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III. Intelligence Information for CVE-2026-105115

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Vendor Advisories for CVE-2026-105115 (2)

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

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-2026-105120 4.9 MEDIUM OpenAM before 16.1.3 Cross-Realm Session Disclosure via Sessions REST Endpoint
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-306

V. Comments for CVE-2026-105115

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