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CVE-2026-100865

8.8 HIGHpublic exploit available

Published 2026-09-27 · Updated 2026-09-28

AI risk analysis

Summary
The flaw allows authenticated users to execute arbitrary Python and OS commands, posing a significant risk due to insufficient sandboxing of workflow condition expressions.
Exploitability
Exploitation is moderately hard as it requires authenticated access and editing of workflow condition nodes or importing malicious templates.
Blast radius
If exploited, the impact could be severe, as it allows for arbitrary command execution as the backend process user, potentially leading to full system compromise.
Detection
No reliable host or network indicator is derivable from the published description.
Prioritized remediation
Upgrade to version 0.0.53 or later.
rceauth-bypasspythonosworkflow

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD description

Heym before 0.0.53 evaluates workflow condition expressions using Python's eval() with insufficient sandboxing in the workflow executor service. Authenticated users can edit workflow condition nodes or import malicious templates to execute arbitrary Python and OS commands as the backend process user.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-94

Public exploit & PoC references

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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