Answer in brief
CVE-2026-53752 records a High severity (CVSS 7.5) vulnerability in docx4j: Stack Overflow via Cyclic `w:basedOn` Style Chain leads to Denial of Service. The current sources do not mark it as known exploited. The current feed maps plutext/docx4j (generic), org.docx4j/docx4j-core (generic), org.docx4j:docx4j-core (maven), org.docx4j:docx4j-core (maven). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps plutext/docx4j (generic), org.docx4j/docx4j-core (generic), org.docx4j:docx4j-core (maven), org.docx4j:docx4j-core (maven). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| plutext/docx4jgeneric | < 11.5.14 | Not reported |
| org.docx4j/docx4j-coregeneric | < 11.5.14 | Not reported |
| org.docx4j:docx4j-coremaven | <=11.5.13 | 11.5.14 |
| org.docx4j:docx4j-coremaven | >=0 <11.5.14 | 11.5.14 |
Published upstream
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 17, 2026
docx4j is an open source Java library for creating, editing, and saving OpenXML packages, including DOCX, PPTX, and XLSX files. Prior to 11.5.14, PropertyResolver and adjacent helpers recursively follow the WordprocessingML w:basedOn style inheritance chain without cycle detection. A well-formed DOCX containing mutually based styles causes unbounded recursion in PropertyResolver.fillPPrStack and related effective-style resolution paths, resulting in StackOverflowError. Server-side conversion and table-of-contents processing of an untrusted document can terminate a worker thread, degrade a thread pool, or deny service, although isolation in disposable workers or safe containment of StackOverflowError can reduce the practical effect. The fix adds cyclic-style tracking and CyclicStylesException handling. This issue is fixed in version 11.5.14.
Quoted source text, attributed separately from HOL analysis.