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CVE-2026-14917— Kong API Gateway Enterprise: SAML Authentication bypass

Quick assessment

Affected
Kong Kong Enterprise Gateway
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.

以下是对该漏洞描述的中文翻译： Kong SAML 插件中存在一个 SAML 认证绕过漏洞，该漏洞在 选项被显式设置为 时会被触发。此选项默认是启用状态。当该选项被禁用时，插件可能会从未签名的 SAML 断言中提取身份信息，并在未验证有效加密签名的情况下完成用户认证。 因此，未认证的远程攻击者可能能够提交一个精心构造的 SAML 响应，从而冒充任意用户（包括管理员）。

CVSS 7.7 · High EPSS 0.82% · P57

Possible ATT&CK Techniques 1 AI

T1562.002

Affected Version Matrix 6

VendorProduct Version RangeStatus
Kong Kong Enterprise Gateway 3.15.0.0< 3.15.0.3 affected
3.14.0.0< 3.14.0.12 affected
3.13.0.0< 3.13.0.9 affected
3.12.0.0< 3.12.0.10 affected
3.10.0.0< 3.10.0.17 affected
3.4.0.0< 3.4.3.29 affected
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I. Basic Information for CVE-2026-14917

Vulnerability Information
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Vulnerability Title
Kong API Gateway Enterprise: SAML Authentication bypass
Source: CVE Program / CVE List V5
Vulnerability Description
A SAML authentication bypass vulnerability affects the Kong SAML plugin when the validate_assertion_signature option is explicitly set to false. This option is enabled by default. When disabled, the plugin may extract the SAML identity from an unsigned assertion and authenticate the user without verifying a valid cryptographic signature. As a result, an unauthenticated remote attacker may be able to submit a crafted SAML response and impersonate arbitrary users, including administrators
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Kong Kong Enterprise Gateway 3.15.0.0 ~ 3.15.0.3 -

II. Public POCs for CVE-2026-14917

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III. Intelligence Information for CVE-2026-14917

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Other References for CVE-2026-14917 (1)

IV. Related Vulnerabilities

Same product: Kong Enterprise Gateway
Same vendor: Kong
Same weakness: CWE-288