Unexpected data selection via duplicate OOXML entries
Published Apr 9, 2025 · Updated May 23, 2025
Improper input validation in Apache POI poi-ooxml before 5.4.0 allows attackers to cause unexpected data reads via crafted OOXML files. The OOXML package parser accepts multiple ZIP entries with the same path and selects one without rejecting the ambiguous package. An application must parse attacker-supplied xlsx, docx, or pptx content; the consequence is integrity loss in the interpreted document data.
Summary
What happened
Improper input validation in Apache POI poi-ooxml before 5.4.0 allows attackers to cause unexpected data reads via crafted OOXML files. The OOXML package parser accepts multiple ZIP entries with the same path and selects one without rejecting the ambiguous package. An application must parse attacker-supplied xlsx, docx, or pptx content; the consequence is integrity loss in the interpreted document data.
The record
- CVE
- CVE-2025-31672
- Published
- Apr 9, 2025
- Updated
- May 23, 2025
- Vendor
- The Apache Software Foundation
- Product
- Apache POI
- Classifications
- CWE-20
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 9, 2025CVE publishedPublication date reported by the CVE source.
- May 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <5.4.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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