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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-100864

heym before 0.0.91 Remote Code Execution via Expression Engine

Description

heym before 0.0.91 contains a sandbox escape vulnerability in the expression engine's DotList map/filter and fallback resolver that allows authenticated users to execute arbitrary Python code. Attackers can craft workflow expressions using dunder attribute access through item expressions or the fallback resolver to access os.system and execute commands as the backend process.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

heymrun heym

Default version status: unaffected

  • 0 to < 0.0.91affected
  • 0.0.91unaffected

References