CVE-2022-31151 Uncleared cookies on cross-host/cross-origin redirect in undici
Attackers can leak sensitive cookies to third-party sites via cross-origin redirects if redirection is enabled in the undici library.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-31151?
CVE-2022-31151 is a low-severity vulnerability in Nodejs Undici, published on 20 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Authorization headers are cleared on cross-origin redirect. However, cookie headers which are sensitive headers and are official headers found in the spec, remain uncleared. There are active users using cookie headers in undici. This may lead to accidental leakage of cookie to a 3rd-party site or a malicious attacker who can control the redirection target (ie. an open redirector) to leak the cookie to the 3rd party site. This was patched in v5.7.1. By default, this vulnerability is not exploitable. Do not enable redirections, i.e. `maxRedirections: 0` (the default).
Which versions are affected by CVE-2022-31151?
2 open source packages ship an affected version, including undici. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
undici npm | All versions | 5.8.0 |
undici npm | All versions | 5.8.0 |
Products include Nodejs Undici.
How do I fix CVE-2022-31151?
Upgrade undici to 5.8.0 or later.
Is CVE-2022-31151 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-31151 exists.
Other vulnerabilities in Nodejs Undici
- CVE-2026-109855 undici WebSocket client vulnerable to Denial of Service via failed HTTP/2 handshake
- CVE-2026-109869 undici vulnerable to Denial of Service via unhandled error on excessive content-encodings
- CVE-2026-87018 undici vulnerable to Denial of Service via TLS 1.2 certificate-changing renegotiation
- CVE-2026-19534 undici vulnerable to Denial of Service via unrequested WebSocket subprotocol
- CVE-2026-12151 undici WebSocket client vulnerable to denial of service via fragment count bypass
Sources
Also known as DEBIAN-CVE-2022-31151, GHSA-q768-x9m6-m9qp, UBUNTU-CVE-2022-31151.