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CVE-2025-49619

8.5 · HIGH

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, 2025CWE-1336EPSS 20.42%

Overview

CVE-2025-49619 is a high-severity vulnerability. It was published on June 7, 2025 and has a CVSS 3.1 base score of 8.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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).

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refcristibtz.github.io/posts/CVE-2025-49619/GitHubgithub.com/Skyvern-AI/skyvern/commit/db856cd8433a204c8b45979c70a4da1e119d949dRefwww.exploit-db.com/exploits/52335Refcristibtz.blog/posts/CVE-2025-49619/

How CyberStrike helps

Frequently asked questions

What is CVE-2025-49619?

CVE-2025-49619 is a high-severity vulnerability. It was published on June 7, 2025 and has a CVSS 3.1 base score of 8.5 (HIGH).

How severe is CVE-2025-49619?

This vulnerability has a CVSS 3.1 base score of 8.5, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-49619?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-49619?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-49619 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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