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Advisory record · GHSA-hfg8-hc9c-6c3h

moby/go-archive: Crafted tar archive can write outside the extraction directory

CVSS 7.1 HighEPSS 0.0044 · 38th percentile

Published by the GitHub Advisory Database at 18 Aug 2026, 21:17 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/moby/go-archiveGo<0.3.00.3.0
Identifiers
GHSA-hfg8-hc9c-6c3h · BIT-docker-cli-2026-17106 · CVE-2026-17106 · GO-2026-6253
Weakness (CWE)
CWE-22 · CWE-59
Tags
Published
18 Aug 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Versions of the Go module github.com/moby/go-archive before 0.3.0 are affected. A crafted tar archive can cause extraction routines such as Unpack, UnpackLayer and Untar to create or overwrite files outside the destination directory, at any path writable by the extracting process. Upgrade to version 0.3.0 or later. Until then, extract only archives from trusted sources.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.1 High 4.0 CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CNA (Docker)
  • CISA KEV Not listed.
  • EPSS 0.0044, the 38th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:14 UTC First seen by agentprime
  2. 31 Oct 2026, 14:14 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.