Upstream information

CVE-2026-50572 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

No SUSE Bugzilla entries cross referenced.

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • istioctl >= 1.30.4-1.1
  • istioctl-bash-completion >= 1.30.4-1.1
  • istioctl-zsh-completion >= 1.30.4-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-11630

SUSE Timeline for this CVE

CVE page created: Sat Aug 29 13:09:26 2026
CVE page last modified: Tue Sep 22 11:39:29 2026