Link Following Affecting telegraf-1.39 package, versions <1.39.3-r9


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.19% (9th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-TELEGRAF139-19706362
  • published12 Sept 2026
  • disclosed10 Sept 2026

Introduced: 10 Sep 2026

NewCVE-2026-88016  (opens in a new tab)
CWE-59  (opens in a new tab)
CWE-281  (opens in a new tab)

How to fix?

Upgrade Chainguard telegraf-1.39 to version 1.39.3-r9 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream telegraf-1.39 package and not the telegraf-1.39 package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

rclone is a command-line program to sync files and directories to and from different cloud storage providers. Prior to 1.75.1, when backend/local runs with --links, a source .rclonelink object can plant a symlink in the destination and later directory metadata is applied through that path. MkdirMetadata, writeMetadataToFile, and setTimes operate when Directory.translatedLink=false, so os.Chown, os.Chmod, os.Chtimes, and birth-time handling can bypass os.Root confinement and follow the symlink. An attacker controlling source contents can therefore apply selected ownership, permissions, modification times, or birth times to a file or directory outside the destination, with --metadata required for chmod and chown while modification time is applied by the normal directory workflow. This issue is fixed in version 1.75.1.