Is this vulnerability remotely exploitable without repository access?

Typically no. Exploitation relies on the ability to influence the workflow definition or the values of inputs it trusts. In this case, an attacker generally needs repository write access or control over how `workflow_dispatch` is invoked in a trusted context.

repository write access

, such as a maintainer account, a compromised collaborator, or a malicious change that gets merged. Once a vulnerable workflow is in place, the attacker can trigger it with crafted inputs to achieve command execution in the CI environment.

Severity:

CRITICAL RISK

(9.1)

OS Command Injection (CWE-77) in Emissary GitHub Actions Workflows

CVE-2026-35580

Published:

Apr 7, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 10, 2026

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HIGH RISK

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May 10, 2026

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-77

Impact:

Arbitrary Command Execution and Supply-Chain Compromise

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-77

Impact:

Arbitrary Command Execution and Supply-Chain Compromise

Severity:

CRITICAL RISK

(9.1)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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OS Command Injection (CWE-77) in Emissary GitHub Actions Workflows

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.8)

PHP Code Injection via File Upload (CWE-94) in Aero CMS Admin Post Creation

HIGH RISK

HIGH

(8.8)

Code Injection (CWE-94) via Module Parameters in Evolution CMS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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