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TI-2026-51290 Aliases CVE-2026-73083

Activepieces: V8 Isolate Sandbox Bypass via importFresh Module Loading

Priority LOW 35CWE-693Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-693.

Summary

Activepieces is an open source AI workflow automation platform. Prior to 0.80.0, in SANDBOX_CODE_ONLY mode, the engine loads the compiled user module with importFresh(), a wrapper around Node.js require(), before the V8 isolate is applied. Top-level module code can therefore call require('child_process'), access fs, and use other Node.js APIs in the host engine process outside the sandbox. An authenticated user who can create a Code step can read environment secrets including AP_ENCRYPTION_KEY and AP_JWT_SECRET, read or write files, and reach internal services. This issue is fixed in version 0.80.0.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00254 17th percentileScored 2026-11-07
Fix Fixed activepieces (activepieces): 0.80.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
activepiecesactivepiecesbefore 0.80.00.80.0Patch availableCNA
  • activepieces Vendoractivepieces Affected before 0.80.0 Fixed in 0.80.0 Patch available CNA

Remediation

  • Fix · CNA activepieces (activepieces) Fixed in 0.80.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-73083

References

Other 2

  • TI-2026-35860 Activepieces: Cross-tenant data exposure and code injection via the Code piece sandbox cache CVSS 4.0CRITICAL 9.3
  • TI-2026-51288 Activepieces: Remote Code Execution via Command Injection in Code Step Name CVSS 4.0HIGH 8.7
  • TI-2026-38608 Activepieces: Arbitrary file write in git-sync via path traversal and symlinks CVSS 4.0MEDIUM 5.9
  • TI-2026-51291 Activepieces: Reflected Cross-Site Scripting in OAuth Redirect Endpoint CVSS 3.1MEDIUM 6.1
  • TI-2026-51289 Activepieces: Server-side request forgery in MCP tool validation endpoint CVSS 4.0MEDIUM 5.3
  • TI-2026-38609 Activepieces: Cross-tenant file download via missing JWT audience check on step-files signed URL CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences