CVE-2026-39409

Published: Apr 08, 2026 Last Modified: Apr 08, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,3
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A

Description

AI Translation Available

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.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0004
Percentile
0,1th
Updated

EPSS Score Trend (Last 8 Days)

180

Incorrect Behavior Order: Validate Before Canonicalize

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
All platforms may be affected
View CWE Details
https://github.com/honojs/hono/commit/48fa2233bc092f650119f…
https://github.com/honojs/hono/commit/48fa2233bc092f650119f42df043050737cabf39
https://github.com/honojs/hono/releases/tag/v4.12.12
https://github.com/honojs/hono/releases/tag/v4.12.12
https://github.com/honojs/hono/security/advisories/GHSA-xpc…
https://github.com/honojs/hono/security/advisories/GHSA-xpcf-pg52-r92g