Feed/CVE-2026-9495
CVE-2026-9495MEDIUMCVSS 7.3

@koa/router has an Access Control Bypass

Published May 26, 2026·Updated Jun 30, 2026

NVD Description

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.

Affected Packages (1)

@koa/routerNPM
From 14.0.0
Fixed in 15.0.0

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References

View on NVD Search GitHub Search Google

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