CVE-2026-55251, CoreCVE

MEDIUM

NetBox Device Type Library: Arbitrary Code Execution on CI Runner Through Malicious requirements.txt, .pre-commit-hooks-config.yaml, and .gitmodules Files

Published Oct 1, 2026

6.5

MEDIUM

CVSS 3.1

Description

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.

Affected products

Vendor Netbox-Community Product Devicetype-Library Default
n/a
- Version
  < f41fc1e48dec8d7d31afba5f13a8c73652ff5796
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

Netbox-Community

Devicetype-Library

n/a

Version	Status	Constraints
< f41fc1e48dec8d7d31afba5f13a8c73652ff5796	affected	-

Remediation

No remediation recorded yet.

Metrics

Weaknesses (3)

CWE-494

CWE-829

CWE-94

Code Injection

References (2)

https://github.com/netbox-community/devicetype-library/commit/f41fc1e48dec8d7d31afba5f13a8c73652ff5796
x_refsource_MISC
https://github.com/netbox-community/devicetype-library/security/advisories/GHSA-5x2m-x42f-g4cm
x_refsource_CONFIRM

Link	Providers	Tags
https://github.com/netbox-community/devicetype-library/commit/f41fc1e48dec8d7d31afba5f13a8c73652ff5796		x_refsource_MISC
https://github.com/netbox-community/devicetype-library/security/advisories/GHSA-5x2m-x42f-g4cm		x_refsource_CONFIRM