Description
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` header. Because AWS ALB appends the real client IP address to the end of the `X-Forwarded-For` header, the first value can be attacker-controlled. This could allow IP-based access control mechanisms (such as the `ipRestriction` middleware) to be bypassed. Version 4.12.2 patches the issue.
INFO
Published Date :
2026-02-25T15:01:44.681Z
Last Modified :
2026-02-27T17:01:28.403Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-27700 vulnerability.
| Vendors | Products |
|---|---|
| Hono |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-27700.
