CVE-2026-67544

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Source
https://cve.org/CVERecord?id=CVE-2026-67544
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67544.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-67544
Aliases
  • GHSA-mp23-7m6r-jfw4
Published
2026-11-11T21:40:09Z
Modified
2026-11-13T10:30:40Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
Heym: Playwright Custom Code Backend RCE via `playwrightCode` Field
Details

Heym builds and runs agentic systems and business-process automations on self-hosted infrastructure. Prior to version 0.0.71, Heym's workflow engine accepts an arbitrary Python code string in the playwrightCode field of a Playwright node. This string is written to a temporary .py file and executed directly by the backend process via subprocess.Popen([sys.executable, script_path]) with no sandboxing, AST validation, or role gate. Any authenticated user — including a freshly registered account — can achieve full remote code execution (RCE) on the backend host, running as the service process user (observed as root in the default Docker deployment). This issue has been patched in version 0.0.71.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-94"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/67xxx/CVE-2026-67544.json"
}
References

Affected packages

Git / github.com/heymrun/heym

Affected ranges

Type
GIT
Repo
https://github.com/heymrun/heym
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d2fd46c07754c4ed3e80b521aa54cc276039849b
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.0.71"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StringRangeExpression"
        },
        {
            "range": [
                {
                    "fixed": "d2fd46c07754c4ed3e80b521aa54cc276039849b"
                }
            ],
            "source": "REFERENCES_COMMIT"
        },
        {
            "original_tag": "0.0.71",
            "range": [
                {
                    "fixed": "d2fd46c07754c4ed3e80b521aa54cc276039849b"
                }
            ],
            "source": "REFERENCES_TAG"
        },
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "0.0.71"
                }
            ],
            "source": "DESCRIPTION"
        }
    ]
}

Affected versions

0.*
0.0.70
Other
codex-pr-assets
v.*
v.0.0.49
v0.*
v0.0.1
v0.0.10
v0.0.11
v0.0.12
v0.0.13
v0.0.14
v0.0.15
v0.0.16
v0.0.17
v0.0.18
v0.0.19
v0.0.2
v0.0.20
v0.0.21
v0.0.22
v0.0.23
v0.0.24
v0.0.25
v0.0.26
v0.0.27
v0.0.29
v0.0.3
v0.0.30
v0.0.31
v0.0.32
v0.0.33
v0.0.34
v0.0.35
v0.0.36
v0.0.37
v0.0.38
v0.0.39
v0.0.4
v0.0.40
v0.0.41
v0.0.42
v0.0.43
v0.0.44
v0.0.45
v0.0.46
v0.0.47
v0.0.48
v0.0.5
v0.0.50
v0.0.51
v0.0.52
v0.0.53
v0.0.54
v0.0.55
v0.0.56
v0.0.57
v0.0.58
v0.0.59
v0.0.6
v0.0.60
v0.0.61
v0.0.62
v0.0.63
v0.0.64
v0.0.65
v0.0.66
v0.0.67
v0.0.68
v0.0.69
v0.0.7
v0.0.8
v0.0.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-67544.json"