CVE-2024-21742

MEDIUM

Published Feb 27, 2024 Modified May 6, 2025 CWE-74

Description

Improper input validation allows for header injection in MIME4J library when using MIME4J DOM for composing message. This can be exploited by an attacker to add unintended headers to MIME messages.

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CVSS v3.1 Score

5.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness Type (CWE)

CWE-74 CWE-74

Affected Products

Vendor	Product	Versions
apache	james_mime4j	< 0.8.9

References

Advisories & Patches

https://lists.apache.org/thread/nrqzg93219wdj056pqfszsd33dc54kfy https://lists.apache.org/thread/nrqzg93219wdj056pqfszsd33dc54kfy

Other References

http://www.openwall.com/lists/oss-security/2024/02/27/5

Frequently Asked Questions

What is CVE-2024-21742? +

Improper input validation allows for header injection in MIME4J library when using MIME4J DOM for composing message. This can be exploited by an attacker to add unintended headers to MIME messages. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2024-21742? +

CVE-2024-21742 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-21742? +

CVE-2024-21742 affects products from apache, specifically: james_mime4j. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-21742? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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