Skyvern through 1.0.56 contains a sandbox bypass vulnerability that allows authenticated users to execute code by reconstructing functions from raw bytecode with types.CodeType. Attackers can deploy scripts that evade the is_safe_script_code AST denylist and import blocked modules such as subprocess or socket to run code in the Skyvern server process.
Metrics
Affected Vendors & Products
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Fri, 06 Nov 2026 19:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Skyvern-ai
Skyvern-ai skyvern |
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| Vendors & Products |
Skyvern-ai
Skyvern-ai skyvern |
Fri, 06 Nov 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Skyvern through 1.0.56 contains a sandbox bypass vulnerability that allows authenticated users to execute code by reconstructing functions from raw bytecode with types.CodeType. Attackers can deploy scripts that evade the is_safe_script_code AST denylist and import blocked modules such as subprocess or socket to run code in the Skyvern server process. | |
| Title | Skyvern through 1.0.56 Script Sandbox Bypass via types.CodeType Bytecode | |
| Weaknesses | CWE-184 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-11-06T17:28:18.374Z
Reserved: 2026-11-06T14:37:45.763Z
Link: CVE-2026-123783
No data.
Status : Deferred
Published: 2026-11-06T15:17:21.103
Modified: 2026-11-06T18:18:04.953
Link: CVE-2026-123783
No data.
OpenCVE Enrichment
Updated: 2026-11-06T19:15:07Z
Weaknesses