CVE-2022-32210

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-07-14 · updated 2026-06-17
Weakness: CWE-295

Description

`Undici.ProxyAgent` never verifies the remote server's certificate, and always exposes all request & response data to the proxy. This unexpectedly means that proxies can MitM all HTTPS traffic, and if the proxy's URL is HTTP then it also means that nominally HTTPS requests are actually sent via plain-text HTTP between Undici and the proxy server.

Affected products

undici: from 4.8.2 before 5.5.1 — fixed in 5.5.1

How to fix

Upgrade to a fixed version: undici 5.5.1. Check the vendor advisory for mitigations.

References

https://github.com/nodejs/undici/security/advisories/GHSA-pgw7-wx7w-2w33
https://hackerone.com/reports/1583680
https://github.com/nodejs/undici/security/advisories/GHSA-pgw7-wx7w-2w33
https://hackerone.com/reports/1583680

Get alerted when CVE-2022-32210 or the next vulnerability affects your stack