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6 vulnerabilities by heymrun
CVE-2026-45227 (GCVE-0-2026-45227)
Vulnerability from nvd – Published: 2026-05-12 21:18 – Updated: 2026-05-14 12:33 X_Open Source
VLAI
Title
Heym < 0.0.21 Sandbox Escape via Python Introspection
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/heymrun/heym/releases/tag/v0.0.21 | release-notes |
| https://github.com/heymrun/heym/pull/94 | issue-tracking |
| https://github.com/heymrun/heym/commit/32b7e809d9… | patch |
| https://www.vulncheck.com/advisories/heym-sandbox… | third-party-advisory |
Impacted products
Date Public
2026-05-09 00:00
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CVE-2026-45226 (GCVE-0-2026-45226)
Vulnerability from nvd – Published: 2026-05-12 21:17 – Updated: 2026-05-13 15:37 X_Open Source
VLAI
Title
Heym < 0.0.21 Authorization Bypass in Workflow Execution
Summary
Heym before 0.0.21 contains an authorization bypass vulnerability in workflow execution that allows authenticated users to execute arbitrary workflows by referencing victim workflow UUIDs without proper access validation. Attackers can create workflows with execute nodes or agent subWorkflowIds pointing to victim workflow UUIDs to load and execute those workflows under attacker-controlled execution paths, exposing victim workflow outputs and triggering workflow nodes with unintended side effects.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/heymrun/heym/releases/tag/v0.0.21 | release-notes |
| https://github.com/heymrun/heym/pull/93 | issue-tracking |
| https://github.com/heymrun/heym/commit/3ae3ef6a7d… | patch |
| https://www.vulncheck.com/advisories/heym-authori… | third-party-advisory |
Impacted products
Date Public
2026-05-09 00:00
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CVE-2026-45225 (GCVE-0-2026-45225)
Vulnerability from nvd – Published: 2026-05-12 21:09 – Updated: 2026-05-25 23:42 X_Open Source
VLAI
Title
Heym < 0.0.21 Path Traversal File Upload via upload_file()
Summary
Heym before 0.0.21 contains a path traversal vulnerability in the file upload endpoint that allows authenticated users to write attacker-controlled files to arbitrary locations by supplying a crafted filename with traversal sequences. Attackers can exploit the unvalidated filename parameter in the upload_file() handler to bypass path restrictions and write, read, or delete files outside the intended storage directory.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/heymrun/heym/releases/tag/v0.0.21 | release-notes |
| https://github.com/heymrun/heym/pull/92 | issue-tracking |
| https://github.com/heymrun/heym/commit/835843e6d2… | patch |
| https://www.vulncheck.com/advisories/heym-path-tr… | third-party-advisory |
Impacted products
Date Public
2026-05-09 00:00
Credits
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CVE-2026-45227 (GCVE-0-2026-45227)
Vulnerability from cvelistv5 – Published: 2026-05-12 21:18 – Updated: 2026-05-14 12:33 X_Open Source
VLAI
Title
Heym < 0.0.21 Sandbox Escape via Python Introspection
Summary
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.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/heymrun/heym/releases/tag/v0.0.21 | release-notes |
| https://github.com/heymrun/heym/pull/94 | issue-tracking |
| https://github.com/heymrun/heym/commit/32b7e809d9… | patch |
| https://www.vulncheck.com/advisories/heym-sandbox… | third-party-advisory |
Impacted products
Date Public
2026-05-09 00:00
Credits
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CVE-2026-45226 (GCVE-0-2026-45226)
Vulnerability from cvelistv5 – Published: 2026-05-12 21:17 – Updated: 2026-05-13 15:37 X_Open Source
VLAI
Title
Heym < 0.0.21 Authorization Bypass in Workflow Execution
Summary
Heym before 0.0.21 contains an authorization bypass vulnerability in workflow execution that allows authenticated users to execute arbitrary workflows by referencing victim workflow UUIDs without proper access validation. Attackers can create workflows with execute nodes or agent subWorkflowIds pointing to victim workflow UUIDs to load and execute those workflows under attacker-controlled execution paths, exposing victim workflow outputs and triggering workflow nodes with unintended side effects.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/heymrun/heym/releases/tag/v0.0.21 | release-notes |
| https://github.com/heymrun/heym/pull/93 | issue-tracking |
| https://github.com/heymrun/heym/commit/3ae3ef6a7d… | patch |
| https://www.vulncheck.com/advisories/heym-authori… | third-party-advisory |
Impacted products
Date Public
2026-05-09 00:00
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CVE-2026-45225 (GCVE-0-2026-45225)
Vulnerability from cvelistv5 – Published: 2026-05-12 21:09 – Updated: 2026-05-25 23:42 X_Open Source
VLAI
Title
Heym < 0.0.21 Path Traversal File Upload via upload_file()
Summary
Heym before 0.0.21 contains a path traversal vulnerability in the file upload endpoint that allows authenticated users to write attacker-controlled files to arbitrary locations by supplying a crafted filename with traversal sequences. Attackers can exploit the unvalidated filename parameter in the upload_file() handler to bypass path restrictions and write, read, or delete files outside the intended storage directory.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/heymrun/heym/releases/tag/v0.0.21 | release-notes |
| https://github.com/heymrun/heym/pull/92 | issue-tracking |
| https://github.com/heymrun/heym/commit/835843e6d2… | patch |
| https://www.vulncheck.com/advisories/heym-path-tr… | third-party-advisory |
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Date Public
2026-05-09 00:00
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