GitHub Advisoryadvisory · npm
GHSA-8v38-pw62-9cw2 url-parse Incorrectly parses URLs that include an '@'
MEDIUM
Official page ↗
- Aliases
- CVE-2022-0639
- Ecosystem
- npm
- Packages
- url-parse
- Severity
- Moderate
- CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- Weaknesses
- CWE-639
- Reviewed
- 2022-02-22
Affected packages
• npm url-parse: >= 1.0.0, < 1.5.7 → fixed in 1.5.7
Description
A specially crafted URL with an '@' sign but empty user info and no hostname, when parsed with url-parse, url-parse will return the incorrect href. In particular,
```js
parse(\"http://@/127.0.0.1\")
```
Will return:
```yaml
{
slashes: true,
protocol: 'http:',
hash: '',
query: '',
pathname: '/127.0.0.1',
auth: '',
host: '',
port: '',
hostname: '',
password: '',
username: '',
origin: 'null',
href: 'http:///127.0.0.1'
}
```
If the 'hostname' or 'origin' attributes of the output from url-parse are used in security decisions and the final 'href' attribute of the output is then used to make a request, the decision may be incorrect.
Related
Alias · CVE (1)
- CVE-2022-0639 Authorization Bypass Through User-Controlled Key in NPM url-parse prior to 1.5.7. vulnerability
Weakness · CWE (1)
- CWE-639 Authorization Bypass Through User-Controlled Key weakness
References
- https://nvd.nist.gov/vuln/detail/CVE-2022-0639 advisory
- https://github.com/unshiftio/url-parse/commit/ef45a1355375a8244063793a19059b4f62fc8788 web
- https://github.com/unshiftio/url-parse package
- https://huntr.dev/bounties/83a6bc9a-b542-4a38-82cd-d995a1481155 web
- https://lists.debian.org/debian-lts-announce/2023/02/msg00030.html web
- https://lists.debian.org/debian-lts-announce/2025/12/msg00024.html web