CVE-2026-45227

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Source

https://cve.org/CVERecord?id=CVE-2026-45227

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45227.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-45227

Published

2026-05-12T21:18:34Z

Modified

2026-08-12T03:51:34Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator

Summary

Heym < 0.0.21 Sandbox Escape via Python Introspection

Details

Heym before 0.0.21 contains a sandbox escape vulnerability in the custom Python tool executor that allows authenticated workflow authors to bypass sandbox restrictions by using object-graph introspection primitives. Attackers can use Python introspection techniques to recover the unrestricted import function, import blocked modules such as os and subprocess, and access inherited backend environment variables containing database credentials and encryption keys to execute arbitrary host commands as the backend service user.

Database specific

{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-693"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45227.json"
}

References

Affected packages

Git / github.com/heymrun/heym

Affected ranges

Type

GIT

Repo

https://github.com/heymrun/heym

Events

Introduced

Fixed

fdd6fd6cca8fb10a25608011a7695fa91093e7ee

Fixed

32b7e809d987d9b018ec8daa2cdaf48f627f26f1

Database specific

Show details

{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.0.21"
        }
    ],
    "source": [
        "DESCRIPTION",
        "REFERENCES"
    ]
}

Affected versions

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

v0.0.3

v0.0.4

v0.0.5

v0.0.6

v0.0.7

v0.0.8

v0.0.9

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45227.json"