SecuriTricks - CVE-2026-47674

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.

Product(s) Impacted

Vendor	Product	Versions
Hono	Hono	*

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-185

Incorrect Regular Expression

The product specifies a regular expression in a way that causes data to be improperly matched or compared.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	hono	hono	/	/	/	/	/	node.js	/	/

References

https://github.com/honojs/hono/security/advisories/GHSA-xrhx-7g5j-rcj5

CVSS Score

5.3 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: NONE
Integrity Impact: LOW
Availability Impact: NONE

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

View Vector String

Timeline

Published: May 28, 2026, 5:16 p.m.
Last Modified: May 29, 2026, 4:57 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-47674