CVE-2025-25200
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.
| Software | From | Fixed in |
|---|---|---|
@types / koa
|
2.0.0 | 2.15.4 |
|
@types / koa
|
3.0.0-alpha.0 | 3.0.0-alpha.3 |
|
@types / koa
|
1.0.0 | 1.7.1 |
|
@types / koa
|
- | 0.21.2 |
| koajs / koa | - | 0.21.2 |
| koajs / koa | 1.0.0 | 1.7.1 |
| koajs / koa | 2.0.0 | 2.15.4 |
| koajs / koa | 3.0.0-alpha0 | 3.0.0-alpha0.x |
| koajs / koa | 3.0.0-alpha1 | 3.0.0-alpha1.x |
| koajs / koa | 3.0.0-alpha2 | 3.0.0-alpha2.x |
- https://github.com/koajs/koa/blob/master/lib/request.js#L259
- https://github.com/koajs/koa/blob/master/lib/request.js#L404
- https://github.com/koajs/koa/commit/5054af6e31ffd451a4151a1fe144cef6e5d0d83c
- https://github.com/koajs/koa/commit/5f294bb1c7c8d9c61904378d250439a321bffd32
- https://github.com/koajs/koa/commit/93fe903fc966635a991bcf890cfc3427d33a1a08
- https://github.com/koajs/koa/releases/tag/2.15.4
- https://github.com/koajs/koa/security/advisories/GHSA-593f-38f6-jp5m
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