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CVE PROGRAM SOURCE RECORD5.9 Medium

CVE-2026-50572

Envoy: ext_authz - RawHttpClientImpl onSuccess 0x0 segfault

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Status
Published
Published
Updated
Assigning organization
GitHub_M

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's HTTP external-authorization client can retain a stale request callback after a request is rejected. When RawHttpClientImpl::onSuccess later processes the authorization response, it can invoke callbacks_ after the callback owner has been destroyed, causing a use-after-free and process crash under production traffic. The relevant scope boundary is that the vulnerable path uses the HTTP ext_authz client; the advisory does not establish the same trigger for unrelated filters. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

envoyproxy envoy

  • < 1.36.10affected
  • >= 1.37.0, < 1.37.6affected
  • >= 1.38.0, < 1.38.4affected
  • >= 1.39.0, < 1.39.1affected

References