Access Control Bypass Affecting github.com/traefik/traefik/v3/pkg/provider/kubernetes/gateway package, versions >=3.7.0 <3.7.6
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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- published6 Jul 2026
- disclosed6 Jul 2026
- creditUnknown
Introduced: 6 Jul 2026
CVE-2026-54765 (opens in a new tab)How to fix?
Upgrade github.com/traefik/traefik/v3/pkg/provider/kubernetes/gateway to version 3.7.6 or higher.
Overview
Affected versions of this package are vulnerable to Access Control Bypass via the backendRef filters process. An attacker can manipulate the filter context applied to requests by creating an accepted HTTPRoute that shares the same backend Service:port, potentially causing their route's filter context to be used for another route's requests, which may result in unauthorized access to sensitive headers or cross-namespace data exposure when ReferenceGrant permits cross-namespace targeting.