Skip to content
OpenAdvisories
Low · 2.3 CVE-2026-17578 EUVD-2026-53299GHSA-v6xc-r9wm-438j

Kong Event Gateway AES-GCM nonce reuse due to missing key rotation enforcement

Published Aug 5, 2026 · Updated Aug 5, 2026 · Assigned by Kong

Description

Kong Event Gateway versions 1.0.0 through 1.1.1 and 1.2.0 do not enforce key rotation before reaching NIST SP 800-38D recommended usage limit for AES-GCM encryption keys with random nonces when the AWS IAM encryption feature is enabled.

If a producer sends messages at a sustained high rate without key rotation, which only occurs on reboot of the Kong Event Gateway instance, the probability of a nonce collision becomes non-negligible. An authorized consumer who detects a nonce collision can recover parts of plaintext from the affected messages.

New versions 1.1.2 and 1.2.1 enforce automatic key rotation before the recommended usage limit is reached.

Affected products

VendorProductAffectedFixed
Kong Kong Event Gateway 1.0.0 – < 1.1.2, 1.2.0 – < 1.2.1 1.1.2

References