Decompression bomb in OpenDocMan causes denial of service
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
OpenDocMan from 2.4.0 through 2.10.0 contains a decompression bomb flaw (CWE-409) in its handling of uploaded office documents. An authenticated user can upload a small ODT, DOCX or XLSX file whose XML entries decompress to hundreds of megabytes. This exhausts PHP memory, crashes PHP workers and degrades availability.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| OpenDocMan | OpenDocMan | 2.4.0 – 2.10.0 | — | No fix listed | CNA |
- OpenDocMan VendorOpenDocMan Affected 2.4.0 – 2.10.0 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for OpenDocMan.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-11 Threatist record created from CVE-2026-108750
- 2026-10-11 Alias added: GHSA-94jr-pr3f-rpjh
- 2026-10-14 CISA SSVC decision points changed
References
Other 3
- 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
More OpenDocMan vulnerabilities
- TI-2019-15737 OpenDocMan 1.3.4 SQL Injection via where Parameter CVSS 4.0HIGH 8.8
- TI-2021-20867 An attacker can upload or transfer files of dangerous types to the OpenDocMan 1.4.4… CVSS 3.1CRITICAL 9.8
- TI-2014-01519 OpenDocMan 1.2.7 and earlier does not properly validate allowed actions, which allows… CVSS 3.0HIGH 8.8
- TI-2015-04739 Cross-site scripting (XSS) vulnerability in OpenDocMan before 1.3.4 allows remote… CVSS 2.0MEDIUM 4.3
- TI-2014-01518 SQL injection vulnerability in ajax_udf.php in OpenDocMan before 1.2.7.2 allows remote… CVSS 2.0HIGH 7.5
- TI-2009-03610 SQL injection vulnerability in index.php in OpenDocMan 1.2.5 allows remote attackers to… CVSS 2.0HIGH 7.5
Sources
- CVE-2026-108750 · CVE Program
- CVE-2026-108750 · NVD
- FIRST EPSS
- GHSA-94jr-pr3f-rpjh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences