Improper Isolation or Compartmentalization Affecting github.com/kubernetes-sigs/aws-load-balancer-controller/pkg/gateway/routeutils package, versions <3.4.2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published14 Jul 2026
- disclosed14 Jul 2026
- creditUnknown
Introduced: 14 Jul 2026
CVE-2026-15738 Â (opens in a new tab)How to fix?
Upgrade github.com/kubernetes-sigs/aws-load-balancer-controller/pkg/gateway/routeutils to version 3.4.2 or higher.
Overview
Affected versions of this package are vulnerable to Improper Isolation or Compartmentalization via incorrect ordering in the listener-rule generation process. An attacker can intercept, spoof, or deny traffic intended for another namespace by crafting a malicious HTTPRoute resource on a shared Gateway.