What’s Vulnerable › Vulnerabilities
CVE-2026-14917: Kong API Gateway Enterprise: SAML Authentication bypass
- Severity: high (CVSS 7.7 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.8% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-09-16 · updated 2026-09-18
- Weakness: CWE-288
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
Affected products
- Kong Enterprise Gateway: from 3.15.0.0 before 3.15.0.3; from 3.14.0.0 before 3.14.0.12; from 3.13.0.0 before 3.13.0.9; from 3.12.0.0 before 3.12.0.10; from 3.10.0.0 before 3.10.0.17; from 3.4.0.0 before 3.4.3.29 — fixed in 3.10.0.17, 3.12.0.10, 3.13.0.9, 3.14.0.12, 3.15.0.3, 3.4.3.29
How to fix
Upgrade to a fixed version: Kong Enterprise Gateway 3.10.0.17, 3.12.0.10, 3.13.0.9, 3.14.0.12. Check the vendor advisory for mitigations.
References
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