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.
History

Wed, 23 Apr 2025 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2022-02-22T22:15:10.000Z

Updated: 2025-04-23T19:01:55.018Z

Reserved: 2021-11-16T00:00:00.000Z

Link: CVE-2021-43824

cve-icon Vulnrichment

Updated: 2024-08-04T04:03:09.023Z

cve-icon NVD

Status : Modified

Published: 2022-02-22T23:15:10.813

Modified: 2024-11-21T06:29:52.380

Link: CVE-2021-43824

cve-icon Redhat

Severity : Moderate

Publid Date: 2022-02-22T07:00:00Z

Links: CVE-2021-43824 - Bugzilla