Is itCheck something

No. CVE-2026-5430

WSO2 flaw lets attackers upload files and take over servers

Being used now

Yes. Attackers are using this right now.

Companies using WSO2 API Manager and related products.

What to do

Apply WSO2's security update for your products.

Confirmed in attacksSep 24, 2026
ProductWSO2 (several products)
GitHub repos4
Attack likelihood, next 30 days22%

Attack likelihood is EPSS, a daily estimate from FIRST.org of how likely this bug is to be used in attacks in the next 30 days.

The official description

WSO2 API Control Plane, API Manager, Traffic Manager & Universal Gateway contain a path traversal vulnerability that could allow for unrestricted file upload and lead to remote code execution.

For your tech helper or AI assistant

A read-only checklist. Paste it into Claude, ChatGPT or a coding agent; it only looks and changes nothing.

Read-only check, change nothing, send nothing anywhere.
Is WSO2 Multiple Products (CVE-2026-5430) installed or running on this machine or in this project?
1. Find every copy and its version (apps, packages, containers, lockfiles).
2. Compare each version against the vendor's fixed version for CVE-2026-5430. Quote the vendor page you used.
3. Report a table: where, version, fixed version, status (exposed / fixed / not installed / unsure).
4. List the exact update steps, but do not run them.
Download playbook (.md)

Code on GitHub

Repos named after this bug. Some are scanners or write-ups, some are working attack code. Do not run them on a machine you care about.

Sources