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High

Heym before 0.0.53 Remote Code Execution via eval() Sandbox Escape

Type: advisorySource: Official CVE List1 source record

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.

Announced Group revision 1
Original source ↗

CVE-2026-100865

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-100865

heym

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "heymrun",
    "product": "heym",
    "versions": [
      {
        "status": "affected",
        "version": "0",
        "lessThan": "0.0.53",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "0.0.53",
        "versionType": "semver"
      }
    ],
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-100865

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#3114 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement