Directory Traversal Affecting fort-validator package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
4.07% (90th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-UBUNTU2004-FORTVALIDATOR-15735683
  • published21 Mar 2026
  • disclosed11 Nov 2021

Introduced: 11 Nov 2021

CVE-2021-3907  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:20.04 fort-validator.

NVD Description

Note: Versions mentioned in the description apply only to the upstream fort-validator package and not the fort-validator package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

OctoRPKI does not escape a URI with a filename containing "..", this allows a repository to create a file, (ex. rsync://example.org/repo/../../etc/cron.daily/evil.roa), which would then be written to disk outside the base cache folder. This could allow for remote code execution on the host machine OctoRPKI is running on.

CVSS Base Scores

version 3.1