CVE-2026-110873
Heym 0.0.55 before 0.0.121 Credential Theft via error_workflow_id Field
- State
- Published
- Severity
- 7.1 High
- Published
- Oct 14, 2026
- Updated
- Oct 16, 2026
- Reserved
- Oct 14, 2026
Description
Heym from 0.0.55 before 0.0.121 contains a privilege escalation vulnerability that allows shared collaborators to overwrite a workflow's error_workflow_id because the field is missing from OWNER_ONLY_EXECUTION_FIELDS. Attackers can point the error workflow to their own workflow with an HTTP node, and when the parent workflow errors the owner's decrypted credentials are injected and exfiltrated.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 7.1 High | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N | VulnCheck |
| 3.1 | 7.1 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N | VulnCheck |
Weaknesses
- CWE-863 Incorrect Authorization
Affected Products
| Product | Versions |
|---|---|
heymheymrun |
|
References
- GitHub Security Advisory (GHSA-c3f4-2mrj-jfqr)vendor-advisory
- VulnCheck Advisory: Heym 0.0.55 before 0.0.121 Credential Theft via error_workflow_id Fieldthird-party-advisory
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