GHSA-XPCF-PG52-R92G Hono has incorrect IP matching in ipRestriction() for IPv4-mapped IPv6 addresses

Summary 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. Details The middlewar...

CVE-2026-27700 Hono is Vulnerable to Authentication Bypass by IP Spoofing in AWS Lambda ALB conninfo

Hono is a Web application framework that provides support for any JavaScript runtime. In versions 4.12.0 and 4.12.1, when using the AWS Lambda adapter hono/aws-lambda behind an Application Load Balancer ALB, the getConnInfo function incorrectly selected the first value from the X-Forwarded-For...

Incorrect Regular Expression

Hono is vulnerable to Incorrect Regular Expression. The vulnerability is due to improper validation of IPv4 octet ranges in the IP Restriction Middleware, which allows an attacker to craft malformed IP addresses to bypass IP-based access controls...

CVE-2026-24398

CVE-2026-24398 — Hono IPv4 address validation bypass : Prior to 4.11.7, IP Restriction Middleware fails to validate IPv4 octets in the src/utils/ipaddr.ts code paths, due to a permissive IPv4_REGEX and an unsafe convertIPv4ToBinary function. This allows crafting malformed IPs that can bypass IP-b...

CVE-2026-24398 Hono's IPv4 address validation bypass in IP Restriction Middleware allows IP spoofing

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.11.7, IP Restriction Middleware in Hono is vulnerable to an IP address validation bypass. The IPV4REGEX pattern and convertIPv4ToBinary function in src/utils/ipaddr.ts do not properly validate...

CVE-2026-24398 Hono's IPv4 address validation bypass in IP Restriction Middleware allows IP spoofing

Hono is a Web application framework that provides support for any JavaScript runtime. Prior to version 4.11.7, IP Restriction Middleware in Hono is vulnerable to an IP address validation bypass. The IPV4REGEX pattern and convertIPv4ToBinary function in src/utils/ipaddr.ts do not properly validate...

GHSA-R354-F388-2FHH Hono IPv4 address validation bypass in IP Restriction Middleware allows IP spoofing

Summary IP Restriction Middleware in Hono is vulnerable to an IP address validation bypass. The IPV4REGEX pattern and convertIPv4ToBinary function in src/utils/ipaddr.ts do not properly validate that IPv4 octet values are within the valid range of 0-255, allowing attackers to craft malformed IP...

Hono IPv4 address validation bypass in IP Restriction Middleware allows IP spoofing

Summary IP Restriction Middleware in Hono is vulnerable to an IP address validation bypass. The IPV4REGEX pattern and convertIPv4ToBinary function in src/utils/ipaddr.ts do not properly validate that IPv4 octet values are within the valid range of 0-255, allowing attackers to craft malformed IP...

PT-2026-4917

Name of the Vulnerable Software and Affected Versions Hono versions prior to 4.11.7 Description The IP Restriction Middleware in Hono does not properly validate IPv4 addresses, allowing attackers to bypass IP-based access controls. The IPV4 REGEX pattern and convertIPv4ToBinary function in...