CVE-2025-48976: commons fileupload DoS — Fix

Description

Allocation of resources for multipart headers with insufficient limits enabled a DoS vulnerability in Apache Commons FileUpload. This issue affects Apache Commons FileUpload: from 1.0 before 1.6; from 2.0.0-M1 before 2.0.0-M4. Users are recommended to upgrade to versions 1.6 or 2.0.0-M4, which fix the issue.

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CVSS v3.1 Score

7.5

HIGH

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

Weakness Type (CWE)

CWE-770 CWE-770

Affected Products

Vendor	Product	Versions
apache	commons_fileupload	1.0 — 1.6
apache	commons_fileupload	All
apache	commons_fileupload	All
apache	commons_fileupload	All
apache	commons_fileupload	All
apache	commons_fileupload	All
apache	commons_fileupload	All

References

Advisories & Patches

https://lists.apache.org/thread/fbs3wrr3p67vkjcxogqqqqz45pqtso12

Other References

http://www.openwall.com/lists/oss-security/2025/06/16/4 https://lists.debian.org/debian-lts-announce/2025/07/msg00008.html https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html

Frequently Asked Questions

What is CVE-2025-48976? +

Allocation of resources for multipart headers with insufficient limits enabled a DoS vulnerability in Apache Commons FileUpload. This issue affects Apache Commons FileUpload: from 1.0 before 1.6; from 2.0.0-M1 before 2.0.0-M4. Users are recommended to upgrade to versions 1.6 or 2.0.0-M4, which fix the issue. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-48976? +

CVE-2025-48976 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-48976? +

CVE-2025-48976 affects products from apache, specifically: commons_fileupload. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-48976? +

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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