Is CVE-2026-9495 actively exploited?

No active exploitation of CVE-2026-9495 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-9495 be exploited remotely?

Yes. CVE-2026-9495 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-9495?

CVE-2026-9495 has a CVSS score of 7.3 (HIGH).

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HIGH

CVE-2026-9495

CWE-284Published: May 26, 2026· Updated: May 26, 2026

7.3

CVSS v3.1

EPSS:0.09%probability of exploitation in 30 daysPercentile:24.6th

Official 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.

NVD Source

Technical Analysis

CVE-2026-9495 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.