OpsTree BuildPiper before 2.7.0 contains a path traversal vulnerability that allows authenticated users with build
Source GCVE Database
Not known to be exploited · CVSS 5.3 Medium : upgrade to 2.7.0 when convenient.
Data as of 13 Nov 2026, 13:53 UTC
Thin evidence
One scorer or none| CNA (VulnCheck) | CVSS 4.0 | 5.3 |
|---|---|---|
| CNA (VulnCheck) | CVSS 3.1 | 4.3 |
- Patch
- Available – fixed in 2.7.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 13 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade BuildPiper to 2.7.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| OpsTree SolutionsBuildPiper | Affected
| Fixed in
|
AI-suggested
Upgrade to OpsTree BuildPiper version 2.7.0 or later, where this path traversal vulnerability is fixed. Until upgrading, restrict build configuration permissions to trusted users only to mitigate risk.
Description
OpsTree BuildPiper versions prior to 2.7.0 have a path traversal vulnerability that allows authenticated users with build configuration permissions to read arbitrary files on the build worker. This is achieved by supplying unvalidated dockerfile_path and build context values, enabling attackers to specify traversal or absolute paths such as /etc/passwd. The file contents are then disclosed in the build log when a build is triggered.
References
- nvd.nist.gov/vuln/detail/CVE-2026-127074 (opens in a new tab)
- gist.github.com/neelkotnis/58e88fa3decf9e0145bf28a4b61a394a (opens in a new tab)
- buildpiper.io (opens in a new tab)
- vulncheck.com/advisories/opstree-buildpiper-before-2.7.0-path-traversal-via-dockerfile-path-and-build-context (opens in a new tab)