NetSight
critical10.0Known exploited

CVE-2026-49869

Kestra OSS OS Command Injection Vulnerability

Exploited in the wild

This vulnerability is on the CISA Known Exploited Vulnerabilities list, added 2026-09-02. Federal due date: 2026-09-05.

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Impact

Kestra OSS contains an OS command injection vulnerability that could allow an unauthenticated remote attacker to create and execute arbitrary workflows without credentials.

Affected products

VendorProductAffected versions
Kestra-IoKestra
before 1.0.45
from 1.1.0, before 1.3.21
KestraKestra
before 1.0.45
from 1.1.0 before 1.3.21

Weakness classification

References