Skyvern before 1.0.45 Sandbox Escape via TextPromptBlock
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.
CVE-2026-82447
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-82447
skyvern
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "Skyvern-AI",
"product": "skyvern",
"versions": [
{
"status": "affected",
"version": "0.2.1",
"lessThan": "1.0.45",
"versionType": "semver"
}
],
"packageURL": "pkg:pypi/skyvern",
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-82447
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #1537 · Revision 1
- Added to Heist Feed
- Publisher date