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CVE-2026-27959 Koa is middleware for Node.js using ES2017 async functions
Description
Koa is middleware for Node.js using ES2017 async functions. Prior to versions 3.1.2 and 2.16.4, Koa's `ctx.hostname` API performs naive parsing of the HTTP Host header, extracting everything before the first colon without validating the input conforms to RFC 3986 hostname syntax. When a malformed Host header containing a `@` symbol is received, `ctx.hostname` returns `evil[.]com` - an attacker-controlled value. Applications using `ctx.hostname` for URL generation, password reset links, email verification URLs, or routing decisions are vulnerable to Host header injection attacks. Versions 3.1.2 and 2.16.4 fix the issue.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Red Hat OpenShift AI 2.25 1776742141 | premières → < 1776742141 | 1776742141 |
| Red Hat OpenShift Container Platform 4.19 1775577192 | premières → < 1775577192 | 1775577192 |
| Red Hat Developer Hub | Versions non publiées | |
| Red Hat OpenShift AI (RHOAI) | Versions non publiées | |
| Self-service automation portal 2 | Versions non publiées | |
| Red Hat OpenShift Dev Spaces | Versions non publiées | |
| koa 3.0 | 3.0.0 → < 3.1.2 | 3.1.2 |
| koa 2.16 | premières → < 2.16.4 | 2.16.4 |
Références
- github.com github.com
- github.com github.com
- github.com github.com
Chronologie
- Publiée
- Dernière modification