CVE-2023-35943

HIGH7.5EPSS 0.01%

Envoy vulnerable to CORS filter segfault when origin header is removed

Published: 3/6/2024Modified: 10/15/2025
Also known as:GHSA-mc6h-6j9x-v3gqBIT-envoy-2023-35943

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12, the CORS filter will segfault and crash Envoy when the `origin` header is removed and deleted between `decodeHeaders`and `encodeHeaders`. Versions 1.27.0, 1.26.4, 1.25.9, 1.24.10, and 1.23.12 have a fix for this issue. As a workaround, do not remove the `origin` header in the Envoy configuration.

Affected packages (1)

  • Bitnami/envoy>= 1.23.0, < 1.23.12, >= 1.24.0, < 1.24.10, >= 1.25.0, < 1.25.9, >= 1.26.0, < 1.26.4

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1HIGH7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References (2)