CVE-2026-100864 — heym before 0.0.91 Remote Code Execution via Expression Engine
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 arbitra…
Published: 2026-09-27 · CVSS: 8.7 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7