CVE-2026-100865
Heym before 0.0.53 Remote Code Execution via eval() Sandbox Escape
CVSS Score
8.8
EPSS Score
0.4%
EPSS Percentile
36th
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.
| CWE | CWE-94 |
| Vendor | heymrun |
| Product | heym |
| Published | Sep 27, 2026 |
| Last Updated | Sep 28, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected Versions
heymrun / heym
0 < 0.0.53
References
Credits
okcomputerfan mbakgun