cvedb.io
CVE-2021-43824
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2022-02-22T23:15:10.813 · Last modified 2026-06-17T04:11:30.997

Summary

Envoy is an open source edge and service proxy, designed for cloud-native applications. In affected versions a crafted request crashes Envoy when a CONNECT request is sent to JWT filter configured with regex match. This provides a denial of service attack vector. The only workaround is to not use regex in the JWT filter. Users are advised to upgrade.

Affected products

envoyproxy — envoy

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.