PT-2026-44414 · Hono · Hono

Offset · Published 2026-05-28 · Updated 2026-07-02 · CVE-2026-47674

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Hono versions prior to 4.12.21

Description 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, which causes the rule to be silently skipped.

Recommendations Update to version 4.12.21.

Exploit

Fix

Weakness Enumeration

CWE-185

CWE-1289

Related Identifiers

CVE-2026-47674

GHSA-XRHX-7G5J-RCJ5

Affected Products

Hono

References · 10

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47674.json · Exploit
• https://github.com/honojs/hono/security/advisories/GHSA-xrhx-7g5j-rcj5 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-APP-NPM-CVE-2026-47674 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-xrhx-7g5j-rcj5 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-47674 · Security Note
• https://osv.dev/vulnerability/CVE-2026-47674 · Vendor Advisory
• https://github.com/honojs/hono · Note
• https://github.com/honojs/hono/commit/c831020fb1fa2e929d222f6c84e1abfe013e512b · Note
• https://github.com/honojs/hono/releases/tag/v4.12.21 · Note
• https://t.me/cveNotify/165228 · Telegram Post