Vulnerability DatabaseCVE-2025-49619
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CVE-2025-49619
Published:June 07, 2025
Updated:May 16, 2026
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).
Related Resources (8)
https://cristibtz.blog/posts/CVE-2025-49619
https://github.com/Skyvern-AI/skyvern/commit/db856cd8433a204c8b45979c70a4da1e119d949d
https://cristibtz.github.io/posts/CVE-2025-49619/
https://cristibtz.blog/posts/CVE-2025-49619/
https://www.exploit-db.com/exploits/52335
https://nvd.nist.gov/vuln/detail/CVE-2025-49619
https://cristibtz.github.io/posts/CVE-2025-49619
https://github.com/Skyvern-AI/skyvern
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CVSS v4
Base Score:
8.4
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
HIGH
Subsequent System Integrity
LOW
Subsequent System Availability
NONE
Exploit Maturity
POC
CVSS v3
Base Score:
8.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
LOW
Availability
NONE
Exploit Maturity
FUNCTIONAL
Weakness Type (CWE)
Improper Neutralization of Special Elements Used in a Template Engine
CWE-1336
EPSS
Base Score:
73.54