CVE-2024-23323
Excessive CPU usage when URI template matcher is configured using regex in Envoy
5.3
MEDIUM
CVSS 3.1
EPSS 0.02%
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.
How to fix CVE-2024-23323
To remediate CVE-2024-23323, upgrade the affected package to a fixed version below.
- —upgrade to 1.26.7 or later
Is CVE-2024-23323 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 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
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |