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CVE-2025-49619

HighPublished

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....

Published: Jun 7, 2025
Updated: Jun 17, 2025
Assigning CNA: mitre
Evidence observed: Jun 15, 2025

Primary CVSS

8.5/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

EPSS probability estimate

20.0%

Moderate · next 30 days

Percentile: 97.4%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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).

Sources

CVE-2025-49619PoC
This script exploits CVE-2025-49619 in Skyvern to execute a reverse shell command.
Skyvern 0.1.85 - Remote Code Execution (RCE) via SSTIExploit
Cristian Branet · multiple · Jun 15, 2025

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