Severity:

HIGH RISK

(7.5)

Log Injection via Misconfigured RFC5424 Layout (CWE-117, CWE-684) in Apache Log4j Core

CVE-2026-34478

Published:

Apr 10, 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

Vulnerability Type

Vulnerability Type

Category:

Log Injection and Improper Output Handling

CWE:

CWE-117;CWE-684

Impact:

Log Injection and Log Integrity Compromise

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Log Injection and Improper Output Handling

CWE:

CWE-117;CWE-684

Impact:

Log Injection and Log Integrity Compromise

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.