CVSS 3.1
8.5 highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:NCVE-2025-49619
High (8.5). EPSS 20% chance of exploitation in the next 30 days.
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).
Severity
- EPSS
- 20% chance of exploitation in the next 30 days; higher than 97% of CVEs (scores of 2026-10-31)
- CWE
- CWE-1336
- Published
- Modified
- Record from
- the NVD, synced
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-h92g-3xc3-ww2r | PyPI | skyvern | <=0.2.0 | no fix published |
| PYSEC-2026-1929 | PyPI | skyvern | <=0.2.0 | no fix published |