Upstream information

CVE-2026-73551 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 URL normalization does not recognize dot and dotdot path segments when they carry semicolon parameters. A request such as /user/..;foo=bar/admin is therefore not canonicalized to /admin even when path normalization is enabled. If an upstream interprets the segment according to RFC 3986 while Envoy applies routing or RBAC to the uncollapsed path, a remote client can cause path confusion and bypass path-based security policy. The relevant scope boundary is that the security consequence depends on a downstream/upstream path interpretation mismatch or a path-based Envoy decision. 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 13:13:25 2026
CVE page last modified: Tue Sep 22 11:44:09 2026