CVE-2026-17106 Affecting openbao package, versions <2.6.2-r1
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-OPENBAO-18969693
- published20 Aug 2026
- disclosed18 Aug 2026
Introduced: 18 Aug 2026
NewCVE-2026-17106 (opens in a new tab)How to fix?
Upgrade Chainguard openbao to version 2.6.2-r1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream openbao package and not the openbao package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
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.
References
- https://docs.docker.com/desktop/release-notes/#4860
- https://docs.docker.com/engine/release-notes/29/#2970
- https://github.com/docker/cli/releases/tag/v29.7.0
- https://github.com/docker/compose/releases/tag/v5.4.0
- https://github.com/docker/sbx-releases/releases/tag/v0.38.0
- https://github.com/moby/go-archive/releases/tag/v0.3.0
- https://github.com/moby/go-archive/security/advisories/GHSA-hfg8-hc9c-6c3h
- https://github.com/masasron/CopyEscape-CVE-2026-17106