CVE-2026-2709 MEDIUM

CVE-2026-2709: busy Callback app.js redirect

Vendor N/A
Product busy
Weakness CWE-601 · Open redirect
Published February 19, 2026
Last update February 23, 2026

CVSS base score

5.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

A flaw has been found in busy up to 2.5.5. The affected element is an unknown function of the file source-code/busy-master/src/server/app.js of the component Callback Handler. Executing a manipulation of the argument state can lead to open redirect. It is possible to launch the attack remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Key dates

02Disclosure timeline

February 19, 2026 CVE published
February 23, 2026 Record updated