CVE-2026-108263CWE-1392CWE-306CWE-653CWE-863CWE-95broken-access-control

CVE-2026-108263

Critical · published October 10, 2026

CVSS v3.1
9.9
EPSS
0%
Percentile
36.5
In the wild
Unconfirmed
What it is

Astron Agent is an agentic workflow platform for building and running AI agents. Prior to 1.1.2, the default workflow code-node path through /console-api/workflow/code/run and /workflow/v1/run selects LocalExecutor in core/workflow/engine/nodes/code/code_node.py when CODE_EXEC_TYPE is not explicitly changed. LocalExecutor supplies complete Python builtins to dynamic code execution without the documented sandbox restrictions. An authenticated low-privilege tenant can execute code as root in the core-workflow container and use shared service and database credentials to bypass application-level tenant checks, read or modify other tenants' data, and disrupt shared services. This issue is fixed in version 1.1.2.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00432 · 36.5th percentile
Weaknesses
CWE-1392 · Use of Default Credentials; CWE-306 · Missing Authentication for Critical Function; CWE-653 · Improper Isolation or Compartmentalization; CWE-863 · Incorrect Authorization; CWE-95 · Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')
Published
2026-10-10T01:17Z
References (6)
EPSS history
Timeline
  • 11 OCT 03:27Z
    EPSS moved — → 0%
    epss
  • 09 OCT 20:47Z
    Astron Agent: Unsandboxed code-node leads to cross-tenant RCE
    cvelistv5
  • 09 OCT 20:47Z
    Astron Agent: Unsandboxed code-node leads to cross-tenant RCE
    cvelistv5