Vulnerability details
CVE-2026-14917
Kong Enterprise Gateway
Kong API Gateway Enterprise: SAML Authentication bypass
CVSS 4.0
7.7High
Official 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
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.7High | 4.0 | CVEProject cvelistV5 (CNA) (Kong) | 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 |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Kong | Kong Enterprise Gateway | 3.10.0.0 ≤ v < 3.10.0.17 | CVEProject cvelistV5 (CNA) |
| Kong | Kong Enterprise Gateway | 3.12.0.0 ≤ v < 3.12.0.10 | CVEProject cvelistV5 (CNA) |
| Kong | Kong Enterprise Gateway | 3.13.0.0 ≤ v < 3.13.0.9 | CVEProject cvelistV5 (CNA) |
| Kong | Kong Enterprise Gateway | 3.14.0.0 ≤ v < 3.14.0.12 | CVEProject cvelistV5 (CNA) |
| Kong | Kong Enterprise Gateway | 3.15.0.0 ≤ v < 3.15.0.3 | CVEProject cvelistV5 (CNA) |
| Kong | Kong Enterprise Gateway | 3.4.0.0 ≤ v < 3.4.3.29 | CVEProject cvelistV5 (CNA) |
References and advisories
1
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Details
- Published
- 2026-09-16
- Last updated
- 2026-09-16
- State
- Published
- Assigner (CNA)
- Kong
Exploit prediction (EPSS)
0.82%
Probability of exploitation in 30 days
57.5%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-288Authentication bypass using an alternate path or channel