CVE-2026-39822 Affecting dataplaneapi package, versions <3.4.0-r3
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-DATAPLANEAPI-17917227
- published9 Jul 2026
- disclosed8 Jul 2026
Introduced: 8 Jul 2026
NewCVE-2026-39822 (opens in a new tab)How to fix?
Upgrade Chainguard dataplaneapi to version 3.4.0-r3 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream dataplaneapi package and not the dataplaneapi package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open("symlink/")' will open "symlink" even when "symlink" is a symbolic link pointing outside of the root.