Is this vulnerability remotely exploitable over the network?

Yes, it is exploitable remotely by any user who can reach the GitHub Enterprise Server over the network and has permission to push to at least one repository on the instance. The attack is carried out through specially crafted git push operations.

What level of access does an attacker need?

The attacker must have valid push access to a repository hosted on the vulnerable GitHub Enterprise Server. Anonymous or read-only users cannot directly trigger the vulnerable path, but any collaborator or compromised account with push rights could attempt exploitation.

What is the safest general fix pattern for this kind of issue?

The safest pattern is to ensure complete separation of data and control by strictly encoding or escaping user-controlled values before inserting them into internal headers or structured metadata, and by avoiding the use of shell or command interpreters where possible. Data should be passed as typed parameters into well-defined APIs, not as fragments of protocol or command strings.

Severity:

HIGH RISK

(8.8)

Command Injection via Unsanitized Push Options (CWE-77) in GitHub Enterprise Server

CVE-2026-3854

Published:

Mar 10, 2026

Status:

Modified

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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Vulnerability Type

Category:

Command Injection

CWE:

CWE-77

Impact:

Remote Code Execution on GitHub Enterprise Server instance

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

Vulnerability Type

Category:

Command Injection

CWE:

CWE-77

Impact:

Remote Code Execution on GitHub Enterprise Server instance

Severity:

HIGH RISK

(8.8)

CVSS Version:

3.1

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Command Injection via Unsanitized Push Options (CWE-77) in GitHub Enterprise Server

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

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

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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