CVE-2026-53576 Details.
Kestra <= 1.3.20 - Remote Code Execution
Atlas does not check this one. Needs an outside server.
To test for this one, the site would have to contact a server outside your network and report back. Atlas does not run checks that need that, so it does not run this one.
About CVE-2026-53576. What It Means.
Kestra <= 1.3.20 contains an authentication bypass caused by misclassification of /configs endpoint in REST API filter, letting unauthenticated attackers create and execute root-level tasks, exploit requires unauthenticated access to /configs endpoint.
Affected Product. What Is Hit.
- Vendor
- kestra
- Product
- Kestra
References. Where To Read More.
FAQ
Common Questions.
Kestra <= 1.3.20 - Remote Code Execution. Kestra <= 1.3.20 contains an authentication bypass caused by misclassification of /configs endpoint in REST API filter, letting unauthenticated attackers create and execute root-level tasks, exploit requires unauthenticated access to /configs endpoint.
No. To test for this one, the site would have to contact a server outside your network and report back. Atlas does not run checks that need that, so it does not run this one. The facts about CVE-2026-53576 are on this page, and you can request a demo to see how Brandefense watches your whole external attack surface.
CVE-2026-53576 is not on the CISA Known Exploited Vulnerabilities list at the time of writing, but it is still worth fixing.
Update Kestra to the latest version from the vendor, or follow the vendor's advice to switch off the affected feature. Vendor links are listed on this page when they are known.
This page lists the public facts about CVE-2026-53576. Atlas does not run a check for it, so nothing here says whether a particular site is affected.