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2 vulnerabilities found for Kong Enteprise Gateway by Kong
CVE-2026-14916 (GCVE-0-2026-14916)
Vulnerability from nvd – Published: 2026-09-16 10:11 – Updated: 2026-09-16 13:26
VLAI
EPSS
VEX
Title
Kong API Gateway Enterprise: JWT Algorithm-Confusion
Summary
A JWT signature verification vulnerability affects Kong components that perform JWT validation for MCP OAuth2 or DataKit integrations inside Kong API Gateway Enterprise. The affected code does not properly validate that the JWT signing algorithm is compatible with the type of key used for verification.
As a result, an unauthenticated remote attacker may be able to craft a forged JWT that is incorrectly accepted as valid, leading to authentication bypass and potential compromise of confidentiality, integrity, and availability.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 13:26 UTC
CWE
- CWE-241 - Improper handling of unexpected data type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://developer.konghq.com/gateway/changelog/ | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kong | Kong Enteprise Gateway |
Affected:
3.15.0.0 , < 3.15.0.3
(custom)
Affected: 3.14.0.0 , < 3.14.0.12 (custom) Affected: 3.13.0.0 , < 3.13.0.9 (custom) Affected: 3.12.0.0 , < 3.12.0.10 (custom) Affected: 3.10.0.0 , < 3.10.0.17 (custom) Affected: 3.4.0.0 , < 3.4.3.29 (custom) |
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CVE-2026-14916 (GCVE-0-2026-14916)
Vulnerability from cvelistv5 – Published: 2026-09-16 10:11 – Updated: 2026-09-16 13:26
VLAI
EPSS
VEX
Title
Kong API Gateway Enterprise: JWT Algorithm-Confusion
Summary
A JWT signature verification vulnerability affects Kong components that perform JWT validation for MCP OAuth2 or DataKit integrations inside Kong API Gateway Enterprise. The affected code does not properly validate that the JWT signing algorithm is compatible with the type of key used for verification.
As a result, an unauthenticated remote attacker may be able to craft a forged JWT that is incorrectly accepted as valid, leading to authentication bypass and potential compromise of confidentiality, integrity, and availability.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-16 13:26 UTC
CWE
- CWE-241 - Improper handling of unexpected data type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://developer.konghq.com/gateway/changelog/ | release-notes |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kong | Kong Enteprise Gateway |
Affected:
3.15.0.0 , < 3.15.0.3
(custom)
Affected: 3.14.0.0 , < 3.14.0.12 (custom) Affected: 3.13.0.0 , < 3.13.0.9 (custom) Affected: 3.12.0.0 , < 3.12.0.10 (custom) Affected: 3.10.0.0 , < 3.10.0.17 (custom) Affected: 3.4.0.0 , < 3.4.3.29 (custom) |
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