CVE-2024-23323

MEDIUM5.3EPSS 0.02%

Excessive CPU usage when URI template matcher is configured using regex in Envoy

Published: 3/6/2024Modified: 10/15/2025
Also known as:GHSA-x278-4w4x-r7chBIT-envoy-2024-23323

Description

Envoy is a high-performance edge/middle/service proxy. The regex expression is compiled for every request and can result in high CPU usage and increased request latency when multiple routes are configured with such matchers. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected packages (1)

  • Bitnami/envoy>= 1.26.0, < 1.26.7, >= 1.27.0, < 1.27.3, >= 1.28.0, < 1.28.1, >= 1.29.0, < 1.29.1

CVSS scores

SourceVersionSeverityVector
osvCVSS 3.1MEDIUM5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References (3)