CVE-2026-92443: Kong Gateway Enterprise cache poisoning via Authorization header

CVE-2026-92443 · Severity: info · Published 2026-11-10

Kong Gateway Enterprise and Kong AI Gateway contain caching plugins that may serve cached responses across different users based on requests with Authorization or Proxy-Authorization headers. This allows an attacker to obtain responses originally intended for other authenticated users, potentially exposing sensitive data or authentication tokens cached from previous requests.

Technologies: Kong AI Gateway, Kong Gateway Enterprise. Vendors: Kong.

Quick answers

Is CVE-2026-92443 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-92443 being exploited in the wild.
How severe is CVE-2026-92443?
Informational severity, published 10 November 2026.
Which products and versions are affected?
Kong Gateway Enterprise; Kong AI Gateway.
Is there a fix for CVE-2026-92443?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-92443 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-92443?
Check whether you run Kong AI Gateway or Kong Gateway Enterprise. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

The caching plugins in Kong Gateway Enterprise and Kong AI Gateway fail to properly distinguish between cached responses when requests carry Authorization or Proxy-Authorization headers, allowing responses cached from one authenticated caller to be served to other callers. The vulnerability is network-accessible via the API gateway's normal request path. A fix is available in updated versions of the affected products.

Affected products

  • Kong Gateway Enterprise
  • Kong AI Gateway

Timeline

  • 2026-11-10: disclosed

References

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