CVE-2026-108750

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.

References

• https://github.com/opendocman/opendocman
• 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://hackmd.io/@haind03/opendocman-office-document-decompression-dos
• https://www.vulncheck.com/advisories/opendocman-2.4.0-through-2.10.0-decompression-bomb-dos-via-upload-text-extraction