RCE in Netbox-Community Devicetype-Library
CVE-2026-55251
NetBox Device Type Library is a collection of community-sourced device type definitions for import into NetBox. Prior to commit f41fc1e, the CI workflow .github/workflows/validation.yml runs on pull_request and executes code supplied by the pull request before any maintainer review. Three PR-editable files drive this: "requirements.txt", ".pre-commit-hooks-config.yaml" / ".pre-commit-yamlfmt-config.yaml", and ".gitmodules". A contributor with no special repository access could open a pull request that modifies these files and have their code run on the CI runner. This issue has been patched via commit f41fc1e.
Vulnerability class: RCE (Remote Code Execution)
Published .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Netbox-Community Devicetype-Library — versions < f41fc1e48dec8d7d31afba5f13a8c73652ff5796
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-55251?
- CVE-2026-55251 is a medium-severity vulnerability in Netbox-Community Devicetype-Library, classified under Code Injection. CVSS score: 6.5/10. Published 2026-10-01.
- How severe is CVE-2026-55251?
- Medium severity. CVSS v3 base score is 6.5 out of 10.