CVE-2021-27906

A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file

5.5 MediumFix available

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

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

3.34%Down 7.0 points since Apr 14, 2021

What each source reports

NVD Score used 5.5

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

Record: CVE-2021-27906
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.0: 4.3 MediumAV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness: CWE-789
Updated: 2026-11-02

CVE List No score

A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file

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

Record: CVE-2021-27906
Weakness: CWE-789
Updated: 2026-11-02

EUVDEUVD-2021-0975 0.0

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

Record: EUVD-2021-0975
CVSS: 0.0 NoneCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6vqp-h455-42mr 5.5

Uncontrolled Memory Allocation in Apache PDFBox

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

Record: GHSA-6vqp-h455-42mr
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-789
Updated: 2026-11-02

OSV 5.5

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

Record: CVE-2021-27906
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVDEBIAN-CVE-2021-27906 5.5

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

Record: DEBIAN-CVE-2021-27906
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

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OSVGHSA-6vqp-h455-42mr 5.5

Uncontrolled Memory Allocation in Apache PDFBox

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

Record: GHSA-6vqp-h455-42mr
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness: CWE-789
Updated: 2026-11-02

OSVOESA-2021-1160 5.5

pdfbox security update

Apache PDFBox is an open source Java PDF library for working with PDF documents. This project allows creation of new PDF documents, manipulation of existing documents and the ability to extract content from documents. Apache PDFBox also includes several command line utilities. Apache PDFBox is published under the Apache License v2.0.

Security Fix(es):

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.(CVE-2021-27807)

A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file. This issue affects Apache PDFBox version 2.0.22 and prior 2.0.x versions.(CVE-2021-27906)

Record: OESA-2021-1160
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVUBUNTU-CVE-2021-27906 5.5

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

Record: UBUNTU-CVE-2021-27906
CVSS 3.1: 5.5 MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVMGASA-2021-0184 No score

Updated pdfbox packages fix security vulnerabilities

A carefully crafted PDF file can trigger an infinite loop while loading the file. This issue affects Apache PDFBox Apache PDFBox version 2.0.22 and prior 2.0.x versions (CVE-2021-27807).

A carefully crafted PDF file can trigger an OutOfMemory-Exception while loading the file. This issue affects Apache PDFBox Apache PDFBox version 2.0.22 and prior 2.0.x versions (CVE-2021-27906).

Record: MGASA-2021-0184
Updated: 2026-11-02

OSVopenSUSE-SU-2024:10622-1 No score

apache-pdfbox-2.0.23-1.3 on GA media

These are all security issues fixed in the apache-pdfbox-2.0.23-1.3 package on the GA media of openSUSE Tumbleweed.

Record: openSUSE-SU-2024:10622-1
Updated: 2026-11-02

Affected products

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Affected packages

Affected packages
Package	Affected	Fixed
`org.apache.pdfbox:pdfbox` Maven	2.0.0 up to 2.0.23	2.0.23
`libpdfbox2-java` Debian:12	before 2.0.23-1	2.0.23-1
`libpdfbox2-java` Debian:13	before 2.0.23-1	2.0.23-1
`libpdfbox2-java` Debian:14	before 2.0.23-1	2.0.23-1
`org.apache.pdfbox:pdfbox` Maven	2.0.0 up to 2.0.23, plus listed versions 2.0.12.0.102.0.112.0.122.0.13 Show 17 moreShow less 2.0.142.0.152.0.162.0.172.0.182.0.192.0.22.0.202.0.212.0.222.0.32.0.42.0.52.0.62.0.72.0.82.0.9	2.0.23
`pdfbox` Mageia:8 From an advisory covering 2 CVEs	before 2.0.23-1.mga8	2.0.23-1.mga8
`pdfbox` openEuler:20.03-LTS-SP1 From an advisory covering 2 CVEs	before 2.0.23-1.oe1	2.0.23-1.oe1
`libpdfbox-java` Ubuntu:16.04:LTS	All versions, plus listed versions 1:1.8.7+dfsg-11:1.8.10-11:1.8.10-21:1.8.11+dfsg-1	None known
`libpdfbox-java` Ubuntu:18.04:LTS	All versions, plus listed versions 1:1.8.13-11:1.8.13-21:1.8.16-2~18.04	None known
`libpdfbox2-java` Ubuntu:18.04:LTS	All versions, plus listed versions 2.0.7-12.0.8-12.0.8-22.0.9-12.0.13-2~18.04	None known

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Affected packages
Package	Affected	Fixed
`libpdfbox-java` Ubuntu:20.04:LTS	All versions, plus listed versions 1:1.8.16-2	None known
`libpdfbox2-java` Ubuntu:20.04:LTS	All versions, plus listed versions 2.0.16-12.0.17-12.0.18-1	None known
`libpdfbox-java` Ubuntu:22.04:LTS	All versions, plus listed versions 1:1.8.16-2	None known
`libpdfbox2-java` Ubuntu:22.04:LTS	All versions, plus listed versions 2.0.23-12.0.24-22.0.25-1	None known
`libpdfbox-java` Ubuntu:24.04:LTS	All versions, plus listed versions 1:1.8.16-41:1.8.16-5	None known
`libpdfbox2-java` Ubuntu:24.04:LTS	All versions, plus listed versions 2.0.27-22.0.29-1	None known
`libpdfbox-java` Ubuntu:25.10	All versions, plus listed versions 1:1.8.16-5	None known
`libpdfbox2-java` Ubuntu:25.10	All versions, plus listed versions 2.0.29-1	None known
`libpdfbox-java` Ubuntu:26.10	All versions, plus listed versions 1:1.8.16-5	None known
`libpdfbox2-java` Ubuntu:26.10	All versions, plus listed versions 2.0.29-1	None known
`libpdfbox-java` Ubuntu:26.04:LTS	All versions, plus listed versions 1:1.8.16-5	None known
`libpdfbox2-java` Ubuntu:26.04:LTS	All versions, plus listed versions 2.0.29-1	None known

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-27906 is a medium vulnerability (CVSS 5.5) in Apache Pdfbox, published March 19, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.34%, the 88th percentile. Fixed in org.apache.pdfbox:pdfbox 2.0.23.

References

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