CVE-2026-73546 | BDVDB-2026-377387 Detail
envoyproxyenvoy
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 /stats?format=html admin endpoint uses StatsHtmlRender, which sanitizes string statistic values but emits statistic names without HTML encoding. A data-plane component such as grpc_stats with stats_for_all_methods enabled can incorporate attacker-controlled path segments into cached dynamic statistic names. When an operator views the HTML stats page, the stored name can execute script with the admin interface's origin and issue privileged same-origin requests. The relevant scope boundary is that the admin interface must be browser-accessible and an enabled component must persist attacker-influenced text in statistic names. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: network.
Weaknesses#
- CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
References#
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-pv9h-4fxf-7vrg
- https://github.com/envoyproxy/envoy/commit/11d34660ca0322eb125d045a564d9d87f016397f
- https://github.com/envoyproxy/envoy/commit/884d30c56b835d5801733ae1dc38c94a08de23e8
- https://github.com/envoyproxy/envoy/commit/9484e17c34353662f9bfd30c74f61fa8c9ee7b83
- https://github.com/envoyproxy/envoy/commit/ab63a0e52b5a28472f2ff865b6464ae4004f7593
- https://github.com/envoyproxy/envoy/releases/tag/v1.36.10
- https://github.com/envoyproxy/envoy/releases/tag/v1.37.6
- https://github.com/envoyproxy/envoy/releases/tag/v1.38.4
- https://github.com/envoyproxy/envoy/releases/tag/v1.39.1
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.