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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.

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 asserti

CVSS 7.7 · High
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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

V. Comments for CVE-2026-14917

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