How severe is CVE-2025-49619?

CVE-2025-49619 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2025-49619 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-49619?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-49619 have an EU (EUVD) identifier?

Yes. CVE-2025-49619 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17375.

When was CVE-2025-49619 published?

CVE-2025-49619 was published on 2025-06-07 and last updated on 2026-06-17.

CVE-2025-49619

CVE-2025-49619 is a high-severity vulnerability with a CVSS 3.x base score of 8.5. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-1336.

Key facts

Severity: High (CVSS 3.x base score 8.5)
EPSS exploit prediction: 14% (96th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-17375
Weakness: CWE-1336
Published: 2025-06-07
Last modified: 2026-06-17

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).

Frequently asked questions

What is 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).
How severe is CVE-2025-49619?: CVE-2025-49619 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2025-49619 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-49619?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-49619 have an EU (EUVD) identifier?: Yes. CVE-2025-49619 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17375.
When was CVE-2025-49619 published?: CVE-2025-49619 was published on 2025-06-07 and last updated on 2026-06-17.

References

Other CWE-1336 vulnerabilities

CVE-2025-53833 — Critical (CVSS 10.0): LaRecipe is an application that allows users to create documentation with Markdown inside a Laravel app. Versions prior…
CVE-2024-32651 — Critical (CVSS 10.0): changedetection.io is an open source web page change detection, website watcher, restock monitor and notification…
CVE-2026-45312 — Critical (CVSS 9.9): RAGFlow is an open-source RAG (Retrieval-Augmented Generation) engine. In 0.24.0 and earlier, a Jinja2 template…
CVE-2026-9558 — Critical (CVSS 9.9): A Server-Side Template Injection (SSTI) vulnerability exists in Mautic's theme engine. The platform renders uploaded…
CVE-2026-33897 — Critical (CVSS 9.9): Incus is a system container and virtual machine manager. Prior to version 6.23.0, instance template files can be used…
CVE-2026-1868 — Critical (CVSS 9.9): GitLab has remediated a vulnerability in the Duo Workflow Service component of GitLab AI Gateway affecting all versions…

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