CVE-2026-35580

CRITICAL

9.1

Description

Emissary is a P2P based data-driven workflow engine. Prior to 8.39.0, GitHub Actions workflow files contained shell injection points where user-controlled workflow_dispatch inputs were interpolated directly into shell commands via ${{ }} expression syntax. An attacker with repository write access could inject arbitrary shell commands, leading to repository poisoning and supply chain compromise affecting all downstream users. This vulnerability is fixed in 8.39.0.

Details CVE

Score CVSS v3.19.1

SeveriteCRITICAL

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

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisHIGH

Interaction utilisateurNONE

Publie4/7/2026

Derniere modification4/7/2026

Sourcenvd

Observations honeypot0

Faiblesses (CWE)

CWE-77

References

https://github.com/NationalSecurityAgency/emissary/pull/1286(security-advisories@github.com)

https://github.com/NationalSecurityAgency/emissary/pull/1288(security-advisories@github.com)

https://github.com/NationalSecurityAgency/emissary/security/advisories/GHSA-3g6g-gq4r-xjm9(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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