---
title: "CVE-2026-23907\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2026-23907?format=md
keywords: index, follow
---

# CVE-2026-23907

Publication date 10 March 2026

Last updated 18 March 2026

---

Ubuntu priority

**Medium**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**5.3 · Medium**

[Score breakdown](https://ubuntu.com/security/CVE-2026-23907?format=md#impact-score)

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## Description

This issue affects the
ExtractEmbeddedFiles example in Apache PDFBox: from 2.0.24 through 2.0.35,
from 3.0.0 through 3.0.6.
The ExtractEmbeddedFiles example contains a path traversal vulnerability
(CWE-22) because
the filename that is obtained from
PDComplexFileSpecification.getFilename() is appended to the extraction
path.
Users who have copied this example into their production code should
review it to ensure that the extraction path is acceptable. The example
has been changed accordingly, now the initial path and the extraction
paths are converted into canonical paths and it is verified that
extraction path contains the initial path. The documentation has also
been adjusted.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| libpdfbox-java | 26.04 LTS resolute | Needs evaluation |
| 25.10 questing | Ignored end of life, was needs-triage |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Needs evaluation |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |
| 16.04 LTS xenial | Needs evaluation |
| libpdfbox2-java | 26.04 LTS resolute | Needs evaluation |
| 25.10 questing | Ignored end of life, was needs-triage |
| 24.04 LTS noble | Needs evaluation |
| 22.04 LTS jammy | Needs evaluation |
| 20.04 LTS focal | Needs evaluation |
| 18.04 LTS bionic | Needs evaluation |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

5.3 · Medium

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Network |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | None |
  | Scope | Unchanged |
  | Confidentiality impact | Low |
  | Integrity impact | None |
  | Availability impact | None |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 5.3 · Medium |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-23907)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2026-23907)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2026-23907)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2026-23907)

### Other references

* <https://www.cve.org/CVERecord?id=CVE-2026-23907>