Dashboard / CVE-2026-35580

CVE-2026-35580

CRITICAL
INFO Priority: 0.05 BB Relevance: 63/100
Published: 2026-04-07 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: High
UI: None
S: Changed
C: High
I: High
A: High

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
nsa emissary 5.10.0 – 8.38.0

References & Advisories (3)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

9.1 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H

EPSS — Exploitation Probability

0.57%
Raw Score 0.005660
Percentile 46.9%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00566
2026-10-28
0.00566

Intelligence Sources

nvd ref →

External Links