CVE-2026-39409

N/A

Description

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.12, ipRestriction() does not canonicalize IPv4-mapped IPv6 client addresses (e.g. ::ffff:127.0.0.1) before applying IPv4 allow or deny rules. In environments such as Node.js dual-stack, this can cause IPv4 rules to fail to match, leading to unintended authorization behavior. This vulnerability is fixed in 4.12.12.

CVE Details

CVSS v3.1 ScoreN/A

Published4/8/2026

Last Modified4/8/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-180

References

https://github.com/honojs/hono/commit/48fa2233bc092f650119f42df043050737cabf39(security-advisories@github.com)

https://github.com/honojs/hono/releases/tag/v4.12.12(security-advisories@github.com)

https://github.com/honojs/hono/security/advisories/GHSA-xpcf-pg52-r92g(security-advisories@github.com)

IOC Correlations

No correlations recorded

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