What’s Vulnerable › Vulnerabilities

CVE-2026-40255: @adonisjs/http-server has an Open Redirect vulnerability

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-16 · updated 2026-10-26
• Weakness: CWE-601

Description

AdonisJS HTTP Server is a package for handling HTTP requests in the AdonisJS framework. In @adonisjs/http-server versions prior to 7.8.1 and 8.0.0-next.0 through 8.1.3, and @adonisjs/core versions prior to 7.4.0, the response.redirect().back() method reads the Referer header from the incoming HTTP request and redirects to that URL without validating the host.An attacker who can influence the Referer header can cause the application to redirect users to a malicious external site. This affects all AdonisJS applications that use response.redirect().back() or response.redirect('back'). This issue has been fixed in versions 7.8.1 and 8.2.0 and 7.4.0 of @adonisjs/core.

Affected products

• adonisjs core: through 7.3.0
• adonisjs http-server: before 7.8.1; from 8.0.0 (excl.) through 8.1.3 — fixed in 7.8.1

How to fix

Upgrade to a fixed version: adonisjs http-server 7.8.1. Check the vendor advisory for mitigations.

References

• https://github.com/adonisjs/http-server/commit/2008fb6cf4f6f1c0ca5797d57def4d93e1c3de08
• https://github.com/adonisjs/http-server/releases/tag/v7.8.1
• https://github.com/adonisjs/http-server/releases/tag/v8.2.0
• https://github.com/adonisjs/http-server/security/advisories/GHSA-6qvv-pj99-48qm

Get alerted when CVE-2026-40255 or the next vulnerability affects your stack