CVEvulnerability
CVE-2026-17106
7.1 HIGH
Official page ↗
- Status
- Awaiting Analysis
- Published
- 2026-08-18
- Last modified
- 2026-08-28
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 7.1 HIGH — 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
- Weaknesses
- CWE-59
Description
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.
Related
Weakness · CWE (1)
- CWE-59 Improper Link Resolution Before File Access weakness
References
- https://docs.docker.com/desktop/release-notes/#4860 docs.docker.com
- https://docs.docker.com/engine/release-notes/29/#2970 docs.docker.com
- https://github.com/docker/cli/releases/tag/v29.7.0 github.com
- https://github.com/docker/compose/releases/tag/v5.4.0 github.com
- https://github.com/docker/sbx-releases/releases/tag/v0.38.0 github.com
- https://github.com/moby/go-archive/releases/tag/v0.3.0 github.com
- https://github.com/moby/go-archive/security/advisories/GHSA-hfg8-hc9c-6c3h github.com
- https://github.com/masasron/CopyEscape-CVE-2026-17106 github.com