CVE-2025-49619
High
Description
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).
SeverityHigh
CVSS8.5
Exploit probability—
ProductSkyvern
PublishedJun 7, 2025
First seenJun 7, 2025
Weakness typeCWE-1336CWE-1336
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| skyvernPyPI | v ≤ 0.2.0 | — |
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