7.5
High
CVE-2022-29227 Envoy is a cloud-native high-performance edge/middle/service proxy
Description
Envoy is a cloud-native high-performance edge/middle/service proxy. In versions prior to 1.22.1 if Envoy attempts to send an internal redirect of an HTTP request consisting of more than HTTP headers, there’s a lifetime bug which can be triggered. If while replaying the request Envoy sends a local reply when the redirect headers are processed, the downstream state indicates that the downstream stream is not complete. On sending the local reply, Envoy will attempt to reset the upstream stream, but as it is actually complete, and deleted, this result in a use-after-free. Users are advised to upgrade. Users unable to upgrade are advised to disable internal redirects if crashes are observed.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| envoy 1.22 | earliest → < 1.22.1 | 1.22.1 |
Other CVEs of envoy
The 98 CVEs of envoy →
CVE-2026-73511
Envoy is an open source edge and service proxy designed for cloud-native applications
5.3
Medium
CVE-2026-73553
Envoy is an open source edge and service proxy designed for cloud-native applications
7.5
High
CVE-2026-73551
Envoy is an open source edge and service proxy designed for cloud-native applications
5.3
Medium
CVE-2026-73546
Envoy is an open source edge and service proxy designed for cloud-native applications
7.4
High