Link Following Affecting nemo package, versions <2.7.3-r27


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
0.19% (8th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-NEMO-19533670
  • published5 Sept 2026
  • disclosed27 Aug 2026

Introduced: 27 Aug 2026

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

How to fix?

Upgrade Chainguard nemo to version 2.7.3-r27 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nemo package and not the nemo package as distributed by Chainguard. See How to fix? for Chainguard 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