VULNERABILITY INTELLIGENCE
CVE-2026-82447
CVSS score8.8 HIGH
EPSS probability0.78%
CISA KEVNot currently listed
Published2026-08-29
Last modified2026-09-23
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
Skyvern before 1.0.45 contains a sandbox escape vulnerability in TextPromptBlock that renders prompts twice, first through a sandboxed Jinja environment and then through an unsandboxed environment. Attackers can inject malicious Jinja template syntax through workflow parameters or upstream block output to execute arbitrary code with server process privileges.
Weakness classification
- disclosure@vulncheck.com: CWE-1336