CVE-2025-49619

Skyvern through 0.1.85 is vulnerable to server-side template injection (SSTI) in the Prompt field of workflow blocks such as the Navigation v2 Block. Improper sanitization of Jinja2 template input allows authenticated users to inject crafted expressions that are evaluated on the server, leading to blind remote code execution (RCE).

Affected products

Jinja, Skyvern

CVSS 3.1

8.5 HIGH

EPSS

20.6% (97th percentile)

Weakness

CWE-1336

NVD status

Deferred

Published

2025-06-07