CVE-2022-31150 CRLF injection in request headers
Attackers can inject CRLF sequences into HTTP request headers, potentially leading to header injection or cache poisoning in applications using undici.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-31150?
CVE-2022-31150 is a medium-severity vulnerability in Nodejs Undici, published on 19 Jul 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
undici is an HTTP/1.1 client, written from scratch for Node.js. It is possible to inject CRLF sequences into request headers in undici in versions less than 5.7.1. A fix was released in version 5.8.0. Sanitizing all HTTP headers from untrusted sources to eliminate `\r\n` is a workaround for this issue.
Weakness: CWE-93
Which versions are affected by CVE-2022-31150?
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-2022-31150?
Upgrade undici to 5.8.0 or later.
Is CVE-2022-31150 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-31150 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-2022-31150, GHSA-3cvr-822r-rqcc, UBUNTU-CVE-2022-31150.