CVE-2026-110873
7.1HighPublished 14 Oct 2026 · NVD status: Deferred · AI triage by gemini-3.8-flash
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Impact
- High impact on confidentiality
- Weakness
- CWE-863
Impact
Authenticated collaborators can steal workflow owners' decrypted credentials. An attacker needs an existing collaborator account on a shared workflow to overwrite the error handler.
Root cause
The error_workflow_id field is missing from OWNER_ONLY_EXECUTION_FIELDS, allowing non-owners to reroute error workflows to their own exfiltration endpoints.
Affected systems
Heym from 0.0.55 before 0.0.121
CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Fix & remediation
Upgrade Heym to version 0.0.121 or later. If patching immediately is not possible, audit shared workflows and remove untrusted collaborators.
AI-suggested. Run it in staging first and check it against the vendor advisory. Why?
NVD 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.