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CVE-2026-110873— Heym 0.0.55 before 0.0.121 Credential Theft via error_workflow_id Field

Quick assessment

Affected
heymrun heym
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Heym 在版本 0.0.55 至 0.0.121（不含 0.0.121）中存在一个权限提升漏洞，使得共享协作者能够覆盖工作流的 error_workflow_id，原因是该字段未包含在 OWNER_ONLY_EXECUTION_FIELDS 中。攻击者可以将 error_workflow 指向其自身的工作流（包含 HTTP 节点），当父工作流出错时，攻击者可窃取并外泄所有者已解密的凭据。

CVSS 7.1 · High EPSS 0.21% · P11

Affected Version Matrix 1

VendorProduct Version RangeStatus
heymrun heym 0.0.55< 0.0.121 affected
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I. Basic Information for CVE-2026-110873

Vulnerability Information
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Vulnerability Title
Heym 0.0.55 before 0.0.121 Credential Theft via error_workflow_id Field
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
heymrun heym 0.0.55 ~ 0.0.121 -

II. Public POCs for CVE-2026-110873

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III. Intelligence Information for CVE-2026-110873

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Other References for CVE-2026-110873 (2)

IV. Related Vulnerabilities

Same product: heym
Same vendor: heymrun
Same weakness: CWE-863

V. Comments for CVE-2026-110873

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