CVE-2026-9495
CVE-2026-9495
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Versions of the package @koa/router from 14.0.0 and before 15.0.0 are vulnerable to Access Control Bypass due to the middleware being silently dropped from the execution chain when the router prefix contains path parameters. Depending on what the skipped middleware was supposed to protect, an attacker could bypass authentication and authorization, evade rate limiting or bypass input sanitization.
CVSS 6.9 · Medium · EPSS 0.4% · Fix available
- Published
- Updated
Stack: node
Affected products and versions
@koa/router
- Versions
- ≥ 14.0.0, < 15.0.0: Affected (semver)
Update to 15.0.0
@koa/router npm
- Affected ranges
- SEMVER: ≥ 14.0.0, < 15.0.0
Update to 15.0.0