{"id":77991,"date":"2026-02-25T19:53:26","date_gmt":"2026-02-25T16:23:26","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-27700-hono-is-vulnerable-to-authentication-bypass-by-ip-spoofing-in-aws-lambda-alb-conninfo\/"},"modified":"2026-02-25T19:53:26","modified_gmt":"2026-02-25T16:23:26","slug":"cve-2026-27700-hono-is-vulnerable-to-authentication-bypass-by-ip-spoofing-in-aws-lambda-alb-conninfo","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-27700-hono-is-vulnerable-to-authentication-bypass-by-ip-spoofing-in-aws-lambda-alb-conninfo\/","title":{"rendered":"CVE-2026-27700 &#8211; Hono is Vulnerable to Authentication Bypass by IP Spoofing in AWS Lambda ALB conninfo"},"content":{"rendered":"<p>CVE ID : CVE-2026-27700<\/p>\n<p>Published :  Feb. 25, 2026, 4:23 p.m. | 45\u00a0minutes ago<\/p>\n<p>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.<\/p>\n<p>Severity: 8.2 | HIGH<\/p>\n<p>Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2026-27700 Published : Feb. 25, 2026, 4:23 p.m. | 45\u00a0minutes ago 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 &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-77991","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77991","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=77991"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/77991\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=77991"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=77991"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=77991"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}