Is CVE-2026-47674 actively exploited?

No active exploitation of CVE-2026-47674 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-47674 be exploited remotely?

Yes. CVE-2026-47674 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-47674?

CVE-2026-47674 has a CVSS score of 5.3 (MEDIUM).

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MEDIUM

CVE-2026-47674

CWE-185Published: May 28, 2026· Updated: May 29, 2026

5.3

CVSS v3.1

EPSS:0.04%probability of exploitation in 30 daysPercentile:13.4th

Official Description

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.21, the ip-restriction middleware (hono/ip-restriction) compares incoming IP addresses against configured deny and allow rules using string equality after partial normalization. Non-canonical IPv6 representations of an address already listed in a static rule — such as compressed forms, explicit-zero forms, or hex-notation IPv4-mapped addresses — do not match the normalized rule entry, causing the rule to be silently skipped. This vulnerability is fixed in 4.12.21.

NVD Source

Technical Analysis

CVE-2026-47674 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.