CVE-2021-43824
HIGH
Published 2022-02-22T22:15:10.000Z
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CVSS Score
V3.1
7.5
/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score Metrics
Exploitability: N/A
Impact: N/A
EPSS Score
v2025.03.14
0.001
probability
of exploitation in the wild
There is a 0.1% chance that this vulnerability will be exploited in the wild within the next 30 days.
Updated: 2025-06-25
Exploit Probability
Percentile: 0.317
Higher than 31.7% of all CVEs
Attack Vector Metrics
Impact Metrics
Description
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.
Available Exploits
No exploits available for this CVE.
Related News
No news articles found for this CVE.
Affected Products
Affected Versions:
References
Published: 2022-02-22T22:15:10.000Z
Last Modified: 2025-04-23T19:01:55.018Z
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