CVE-2026-2709
busy Callback app.js redirect
- State
- Published
- Severity
- 5.1 Medium
- Published
- Feb 19, 2026
- Updated
- Feb 23, 2026
- Reserved
- Feb 18, 2026
Description
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 5.1 Medium | 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 | VulDB |
| 3.1 | 3.5 Low | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R | VulDB |
| 3.0 | 3.5 Low | CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R | VulDB |
| 2.0 | 4.0 Medium | AV:N/AC:L/Au:S/C:N/I:P/A:N/E:POC/RL:ND/RC:UR | VulDB |
| 3.1 | 3.5 Low | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N | CISA-ADP |
Weaknesses
- CWE-601 Open Redirect
Affected Products
| Product | Versions |
|---|---|
busyn/a |
|
References
- VDB-346661 | busy Callback app.js redirectvdb-entrytechnical-description
- VDB-346661 | CTI Indicators (IOB, IOC, TTP, IOA)signaturepermissions-required
- Submit #753299 | busyorg busy <=2.5.5 Open Redirectthird-party-advisory
- https://github.com/busyorg/busy/issues/2287issue-tracking
- https://github.com/busyorg/busy/issues/2287#issue-3905518966exploitissue-tracking
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