Severity:

HIGH RISK

(7.2)

OS Command Injection in GitHub Enterprise Server Proxy

CVE-2026-4821

Published:

Apr 21, 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

Recent Vulnerabilities

CWE-74;CWE-94

HIGH RISK

HIGH

(7.3)

Code Injection (CWE-94) in ANTLR4 Grammar Action Block

Arbitrary Code Execution in Generated Artifacts

June 28, 2026

CWE-74;CWE-89

HIGH RISK

HIGH

(7.3)

SQL Injection (CWE-89) in Restaurant Password Reset

Authentication Data Exposure and Account Compromise

June 28, 2026

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Arbitrary OS Command Execution by Authenticated Admin

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

Vulnerability Type

Category:

OS Command Injection

CWE:

CWE-78

Impact:

Arbitrary OS Command Execution by Authenticated Admin

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

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From first line of code to a pentest that knows every line of it.

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OS Command Injection in GitHub Enterprise Server Proxy

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

(7.3)

Code Injection (CWE-94) in ANTLR4 Grammar Action Block

HIGH RISK

HIGH

(7.3)

SQL Injection (CWE-89) in Restaurant Password Reset

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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