Directory Traversal Affecting sabnzbdplus package, versions <3.2.1+dfsg-1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.89% (59th percentile)

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  • Snyk IDSNYK-ECHOLATEST-SABNZBDPLUS-19012640
  • published20 Aug 2026
  • disclosed7 May 2021

Introduced: 7 May 2021

CVE-2021-29488  (opens in a new tab)
CWE-23  (opens in a new tab)

How to fix?

Upgrade Echo:latest sabnzbdplus to version 3.2.1+dfsg-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream sabnzbdplus package and not the sabnzbdplus package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

SABnzbd is an open source binary newsreader. A vulnerability was discovered in SABnzbd that could trick the filesystem.renamer() function into writing downloaded files outside the configured Download Folder via malicious PAR2 files. A patch was released as part of SABnzbd 3.2.1RC1. As a workaround, limit downloads to NZBs without PAR2 files, deny write permissions to the SABnzbd process outside areas it must access to perform its job, or update to a fixed version.

CVSS Base Scores

version 3.1