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Vulnerability record · public intelligence
CVE-2021-27807
UNKNOWN

Excessive Iteration Denial of Service in Apache PDFBox

Published Mar 19, 2021 · Updated Nov 3, 2026

Severity · CVSSUNKNOWN · Not scored
Known exploitationNot listed
EPSS / likelihood2.99%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Nov 3, 2026

Excessive Iteration Denial of Service in Apache PDFBox

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

A carefully crafted PDF file can trigger an infinite loop while loading the file. This issue affects Apache PDFBox version 2.0.22 and prior 2.0.x versions.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

FIRST-EPSSCVE-LIST-V5
SSVC priority
LOW
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. lists.apache.org ↗
  2. [oss-security] 20210319 CVE-2021-27807: Apache PDFBox: A carefully crafted PDF file can trigger an infinite loop while loading the file ↗
  3. [pdfbox-users] 20210320 CVE-2021-27807: Apache PDFBox: a carefully crafted PDF file can trigger an infinite loop while loading the file ↗
  4. [announce] 20210320 CVE-2021-27807: Apache PDFBox: a carefully crafted PDF file can trigger an infinite loop while loading the file ↗
  5. [ofbiz-commits] 20210321 [ofbiz-framework] branch trunk updated: Fixed: Upgrade Apache PDFBox to 2.0.23 because of CVE-2021-27807 and CVE-2021-27906 (OFBIZ-12205) ↗
  6. [ofbiz-notifications] 20210321 [jira] [Created] (OFBIZ-12205) Upgrade Apache PDFBox to 2.0.23 because of CVE-2021-27807 and CVE-2021-27906 ↗
  7. [ofbiz-notifications] 20210321 [jira] [Commented] (OFBIZ-12205) Upgrade Apache PDFBox to 2.0.23 because of CVE-2021-27807 and CVE-2021-27906 ↗
  8. [ofbiz-notifications] 20210321 [jira] [Updated] (OFBIZ-12205) Upgrade Apache PDFBox to 2.0.23 because of CVE-2021-27807 and CVE-2021-27906 ↗
  9. [ofbiz-commits] 20210321 [ofbiz-framework] branch release17.12 updated: Fixed: Upgrade Apache PDFBox to 2.0.23 because of CVE-2021-27807 and CVE-2021-27906 (OFBIZ-12205) ↗
  10. [ofbiz-notifications] 20210321 [jira] [Closed] (OFBIZ-12205) Upgrade Apache PDFBox to 2.0.23 because of CVE-2021-27807 and CVE-2021-27906 ↗
  11. [ofbiz-commits] 20210321 [ofbiz-framework] branch release18.12 updated: Fixed: Upgrade Apache PDFBox to 2.0.23 because of CVE-2021-27807 and CVE-2021-27906 (OFBIZ-12205) ↗
  12. [pdfbox-dev] 20210322 OSS-Fuzz integration ↗

Record history

Published Mar 19, 2021 · Last refreshed Nov 3, 2026

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