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CVE-2017-12626: Denial of Service in Apache POI

January 14, 2021 (updated June 9, 2026)

Apache POI in versions prior to release 3.17 are vulnerable to Denial of Service Attacks:

  • Infinite Loops while parsing crafted WMF, EMF, MSG and macros (POI bugs 61338 and 61294)
  • Out of Memory Exceptions while parsing crafted DOC, PPT and XLS (POI bugs 52372 and 61295)

References

  • access.redhat.com/errata/RHSA-2018:1322
  • github.com/advisories/GHSA-523c-xh4g-mh5m
  • lists.apache.org/thread.html/453d9af5dbabaccd9afb58d27279a9dbfe8e35f4e5ea1645ddd6960b%40%3Cdev.poi.apache.org%3E
  • lists.apache.org/thread.html/453d9af5dbabaccd9afb58d27279a9dbfe8e35f4e5ea1645ddd6960b@%3Cdev.poi.apache.org%3E
  • lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451%40%3Csolr-user.lucene.apache.org%3E
  • lists.apache.org/thread.html/708d94141126eac03011144a971a6411fcac16d9c248d1d535a39451@%3Csolr-user.lucene.apache.org%3E
  • nvd.nist.gov/vuln/detail/CVE-2017-12626
  • www.oracle.com/security-alerts/cpuApr2021.html
  • www.oracle.com/security-alerts/cpuapr2020.html
  • www.oracle.com/security-alerts/cpujan2020.html
  • www.oracle.com/security-alerts/cpujan2021.html
  • www.oracle.com/security-alerts/cpujul2020.html
  • www.oracle.com/security-alerts/cpuoct2020.html
  • www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Code Behaviors & Features

Detect and mitigate CVE-2017-12626 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →

Affected versions

All versions before 3.17.0

Fixed versions

  • 3.17.0

Solution

Upgrade to version 3.17.0 or above.

Impact 7.5 HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Learn more about CVSS

Weakness

  • CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

Source file

maven/org.apache.poi/poi/CVE-2017-12626.yml

Spotted a mistake? Edit the file on GitLab.

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