October 19, 2026

CVE Watchtower

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CVE-2026-17106NVD

Vulnerability Summary

The tar extraction routines in moby/go-archive (Unpack, UnpackLayer, Untar/UntarUncompressed, and the ApplyLayer helpers) do not confine filesystem operations to the destination directory. The extractor decides where each archive entry lands using lexical string checks and then performs the filesystem operation on a path that is resolved by the OS, so links introduced by the archive can be followed out of the destination directory. An attacker who controls the contents of an archive can create or overwrite files at arbitrary paths writable by the extracting process.
Severity Level
UNKNOWN
Published Date
Aug 18, 2026
Last Modified
Aug 19, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.33%Probability
Root Weakness (CWE)
CWE-59: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v4.0 Base Metrics — Score 7.1 (HIGH)
Attack VectorLocal
Attack ComplexityLow
Attack RequirementsPresent
Privileges RequiredNone
User InteractionActive
Confidentiality (Vulnerable System)High
Integrity (Vulnerable System)High
Availability (Vulnerable System)High
Confidentiality (Subsequent System)None
Integrity (Subsequent System)None
Availability (Subsequent System)None

Affected & Patched Versions

Affected Versions
  • moby go-archive < 0.3.0
  • Docker Docker Sandboxes < 0.38.0
  • Docker Docker Desktop < 4.86.0
  • Docker Docker Engine < 29.7.0
  • Docker Docker CLI < 29.7.0
  • Docker Docker Compose < 5.4.0
Patched Versions
  • moby go-archive 0.3.0
  • Docker Docker Sandboxes 0.38.0
  • Docker Docker Desktop 4.86.0
  • Docker Docker Engine 29.7.0
  • Docker Docker CLI 29.7.0
  • Docker Docker Compose 5.4.0
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
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External References