OpenDocMan 2.4.0 through 2.10.0 Decompression Bomb DoS via Upload Text Extraction

Advisories

OpenDocMan 2.4.0 through 2.10.0 Decompression Bomb DoS via Upload Text Extraction

severity: medium
date: 10/11/2026
Affecting: OpenDocMan >= 2.4.0, <= 2.10.0
CVE: CVE-2026-108750
CWE: CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)
CVSS: 5.3
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
References: https://hackmd.io/@haind03/opendocman-office-document-decompression-dos
https://github.com/opendocman/opendocman/blob/641f0a6f8eeba902e309978ec04291c44d3cd1c5/application/models/Document.class.php#L67-L75
https://github.com/opendocman/opendocman/blob/641f0a6f8eeba902e309978ec04291c44d3cd1c5/application/models/TextExtractors/OdtExtractor.class.php#L10-L25
https://github.com/opendocman/opendocman
Credit: HaiND from the Post and Telecommunication Institute of Technology
Description: OpenDocMan 2.4.0 through 2.10.0 contains a decompression bomb vulnerability that allows authenticated users to exhaust PHP memory by uploading crafted office documents. Attackers can upload a small ODT, DOCX, or XLSX file whose XML entries decompress to hundreds of megabytes, crashing PHP workers and degrading availability.

Ready to get Started?

Explore VulnCheck, a next-generation Cyber Threat Intelligence platform, which provides exploit and vulnerability intelligence to help you prioritize and remediate vulnerabilities that matter.

Vulnerability Prioritization
Prioritize vulnerabilities that matter based on the threat landscape and defer vulnerabilities that don't.
Early Warning System
Real-time alerting of changes in the vulnerability landscape so that you can take action before the attacks start.

Schedule a Demo