CVE-2026-127078 json
OpsTree BuildPiper before 2.7.0 Authorization Bypass via project_env_id Parameter
published 2d ago modified yesterday also EUVD-2026-125104
- cvss
- 7.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
OpsTree BuildPiper before 2.7.0 contains an authorization bypass vulnerability that allows authenticated users to attach another application's environment to their service by supplying a foreign project_env_id. Attackers can configure CI and trigger builds and deployments through the component env endpoints using the other application's configuration, registries and deployment infrastructure.
Patch / fix
- OpsTree Solutions BuildPiper 2.7.0
Is CVE-2026-127078 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.34% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-14).
Exploits and checks
- gist.github.com https://gist.github.com/neelkotnis/26f637bfda3513ab255d8f8e46bcf8d1 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N |
| CNA | 4.0 | 7.1 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/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 |
| NVD | 3.1 | 7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N |
Affected products
- OpsTree Solutions BuildPiper
Classification
- Weakness
-
- CWE-639 Authorization Bypass Through User-Controlled Key
References
-
gist.github.com
/neelkotnis/26f637bfda3513ab255d8f8e46bcf8d1
technical-description, exploit
-
buildpiper.io
/
product
-
vulncheck.com
/advisories/opstree-buildpiper-before-2.7.0-authorization-bypass-via-project-env-id-parameter
third-party-advisory
Sources
- CVE List CVE-2026-127078
- NVD CVE-2026-127078
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.