CVEvulnerability

CVE-2026-35580

9.1 CRITICAL Published 2026-04-07 Modified 2026-10-26 Official page ↗
Status
Analyzed
Published
2026-04-07
Last modified
2026-10-26
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.1 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Weaknesses
CWE-77

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.

Affected configurations

• nsa emissary (>= 5.10.0 <= 8.38.0)

Related

Weakness · CWE (1)

  • CWE-77 Improper Neutralization of Special Elements used in a Command weakness

References