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CVE-2026-45226

HIGH

7.1

Description

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.

Details CVE

Score CVSS v3.17.1

SeveriteHIGH

Vecteur CVSSCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:L

Vecteur d'attaqueNETWORK

ComplexiteHIGH

Privileges requisLOW

Interaction utilisateurNONE

Publie5/12/2026

Derniere modification5/13/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-863

References

https://github.com/heymrun/heym/commit/3ae3ef6a7d3609da0e910f9ed6b81e99a1661ac8(disclosure@vulncheck.com)

https://github.com/heymrun/heym/pull/93(disclosure@vulncheck.com)

https://github.com/heymrun/heym/releases/tag/v0.0.21(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/heym-authorization-bypass-in-workflow-execution(disclosure@vulncheck.com)

Correlations IOC

Aucune correlation enregistree

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