CVE-2026-127074

MEDIUM 4.3

OpsTree BuildPiper before 2.7.0 Path Traversal via Dockerfile Path and Build Context

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

OpsTree BuildPiper before 2.7.0 contains a path traversal vulnerability that allows authenticated users with build configuration permission to read files on the build worker by supplying unvalidated dockerfile_path and build context values. Attackers can set traversal or absolute paths such as /etc/passwd via the CI configuration endpoint, then trigger a build to disclose file contents in the build log.

CWE	CWE-22
Vendor	opstree solutions
Product	buildpiper
Published	Nov 13, 2026

Stay Ahead of the Next One

Get instant alerts for opstree solutions buildpiper

Be the first to know when new medium vulnerabilities affecting opstree solutions buildpiper are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Affected Versions

OpsTree Solutions / BuildPiper

0 < 2.7.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gist.github.com: https://gist.github.com/neelkotnis/58e88fa3decf9e0145bf28a4b61a394a buildpiper.io: https://www.buildpiper.io/ vulncheck.com: https://www.vulncheck.com/advisories/opstree-buildpiper-before-2.7.0-path-traversal-via-dockerfile-path-and-build-context

Credits

Neel Saurabh Kotnis