Name: CVE-2026-17106: Improper Link Resolution Before File Access
Creator: Rapid7
Published: 2026-08-18T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-17106, CWE-59, CVSS 7.1, EPSS 0.0044

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.

CVSS Details

CVSS 4.0 Base Score: 7.1 (HIGH)
CVSS 4.0 Vector: (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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alma_linux	—	Upgrade podman-pluginsUpgrade podman-testsUpgrade podmanUpgrade podman-dockerUpgrade podman-remote	Oct 11, 2026	Sep 22, 2026
Amazon Linux Ami 2	—	Upgrade runfinch-finch	Oct 19, 2026	Oct 19, 2026
Amazon_linux_2023	—	Upgrade runfinch-finch	Sep 30, 2026	Aug 18, 2026
Docker Desktop	—	Upgrade Docker Desktop to the latest version	Aug 25, 2026	Aug 18, 2026
Oracle_linux	—	Upgrade podman-dockerUpgrade podman-testsUpgrade podman-pluginsUpgrade podman-remoteUpgrade podman	Oct 22, 2026	Aug 18, 2026
Redhat_linux	—	Upgrade podman-plugins-debuginfoUpgrade podman-remote-debuginfoUpgrade podman-pluginsUpgrade podman-debugsourceUpgrade podman-testsUpgrade podman-tests-debuginfoNo solution existsUpgrade podmanUpgrade podman-dockerUpgrade podman-remoteUpgrade podman-debuginfo	Sep 3, 2026	Aug 18, 2026
Rocky_linux	—	Upgrade podman-remote-debuginfoUpgrade podman-pluginsUpgrade podman-debugsourceUpgrade podman-plugins-debuginfoUpgrade podman-remoteUpgrade podmanUpgrade podman-tests-debuginfoUpgrade podman-debuginfoUpgrade podman-tests	Sep 28, 2026	Sep 23, 2026

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CVSS Details

Covered by Rapid7

Prioritize with Active Threat Intelligence