Required CVE Record Information
Description
Koa is expressive middleware for Node.js using ES2017 async functions. Prior to versions 0.21.2, 1.7.1, 2.15.4, and 3.0.0-alpha.3, Koa uses an evil regex to parse the `X-Forwarded-Proto` and `X-Forwarded-Host` HTTP headers. This can be exploited to carry out a Denial-of-Service attack. Versions 0.21.2, 1.7.1, 2.15.4, and 3.0.0-alpha.3 fix the issue.
CVSS 1 Total
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.2 | CRITICAL | 4.0 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H |
References 7 Total
- github.com: https://github.com/koajs/koa/security/advisories/GHSA-593f-38f6-jp5m
- github.com: https://github.com/koajs/koa/commit/5054af6e31ffd451a4151a1fe144cef6e5d0d83c
- github.com: https://github.com/koajs/koa/commit/5f294bb1c7c8d9c61904378d250439a321bffd32
- github.com: https://github.com/koajs/koa/commit/93fe903fc966635a991bcf890cfc3427d33a1a08
- github.com: https://github.com/koajs/koa/blob/master/lib/request.js#L259
- github.com: https://github.com/koajs/koa/blob/master/lib/request.js#L404
- github.com: https://github.com/koajs/koa/releases/tag/2.15.4