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 |
|---|---|---|---|---|
| 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 |
| Redhat_linux | — | Upgrade podman-debugsourceUpgrade podman-testsUpgrade podman-pluginsUpgrade podman-plugins-debuginfoUpgrade podman-remote-debuginfoUpgrade podman-remoteUpgrade podman-dockerUpgrade podman-debuginfoUpgrade podman-tests-debuginfoNo solution existsUpgrade podman | Sep 3, 2026 | Aug 18, 2026 |
| Rocky_linux | — | Upgrade podman-remoteUpgrade podman-debuginfoUpgrade podmanUpgrade podman-testsUpgrade podman-tests-debuginfoUpgrade podman-plugins-debuginfoUpgrade podman-pluginsUpgrade podman-debugsourceUpgrade podman-remote-debuginfo | Sep 28, 2026 | Sep 23, 2026 |
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