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CVE-2026-14917

Kong API Gateway Enterprise: SAML Authentication bypass

HIGH
7.7
CVSS Score
Published: September 16, 2026 at 10:06 AM UTC
Updated: September 18, 2026 at 07:19 PM UTC
1 product affected across 1 vendorEnterprise Gateway

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Severity
HIGH7.7
Exploit prediction
EPSS 0.8%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Enterprise Gateway· Kong
60%
3.10.0.0 ≤ v < 3.10.0.173.12.0.0 ≤ v < 3.12.0.103.13.0.0 ≤ v < 3.13.0.93.14.0.0 ≤ v < 3.14.0.123.15.0.0 ≤ v < 3.15.0.33.4.0.0 ≤ v < 3.4.3.293.10.0.03.12.0.03.13.0.03.14.0.03.15.0.03.4.0.0
Affected range stops below 3.10.0.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.12.0.10, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.13.0.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.14.0.12, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.15.0.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.4.3.29, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Patch
Source: cverecord
https://developer.konghq.com/gateway/changelog/#3-15-0-3

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHKong
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-288

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