PT-2026-52894 · Undefined · Undefined
Published
2026-06-26
·
Updated
2026-06-26
·
CVE-2026-47220
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Envoy is an open source edge and service proxy designed for cloud-native applications. From 1.37.0 until 1.37.5 and 1.38.3, when the %REQUESTED SERVER NAME(X:Y)% is used in log format and host related options is specified, like HOST FIRST, SNI FIRST, it's possible to crash Envoy when the specified host header is missing in the request headers. This vulnerability is fixed in 1.37.5 and 1.38.3.
Fix
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Undefined