Link Following Affecting open-webui package, versions <0.11.3-r1


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.19% (8th percentile)

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  • Snyk IDSNYK-WOLFILATEST-OPENWEBUI-19532083
  • published5 Sept 2026
  • disclosed27 Aug 2026

Introduced: 27 Aug 2026

NewCVE-2026-81727  (opens in a new tab)
CWE-59  (opens in a new tab)

How to fix?

Upgrade Wolfi open-webui to version 0.11.3-r1 or higher.

NVD Description

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

NLTK versions before 3.10.3 contain a filesystem containment bypass vulnerability in the Downloader.download and Downloader.incr_download methods that allows attackers to overwrite files outside the install root through pre-existing hardlinks. Attackers with write access to a shared downloader directory can create hardlinks pointing to outside-root files that are then overwritten during normal package extraction, mutating files outside the intended install tree.

CVSS Base Scores

version 3.1