Vulnerability Description
NetBox Device Type Library is a collection of community-sourced device type definitions for import into NetBox. The validation test harness can deserialize pull-request-controlled tracked pickle cache files through pickle.load in the read_pickle_data function in tests/pickle_operations.py. An unauthenticated contributor can change USE_LOCAL_KNOWN_SLUGS in tests/test_configuration.py and supply a crafted tests/known-modules.pickle or tests/known-racks.pickle file that tests/definitions_test.py loads when pytest runs. Deserialization invokes attacker-controlled object reduction behavior, allowing arbitrary code execution in the GitHub Actions runner or in a maintainer process that runs the tests, with the confidentiality, integrity, and availability of reachable resources at risk. This vulnerability is fixed with commit 1c6f7e2b93589b965318c6e67ac3504831f0e71e.
CVSS Score
CRITICAL
Related Weaknesses (CWE)
References
- https://github.com/netbox-community/devicetype-library/commit/1c6f7e2b93589b9653
- https://github.com/netbox-community/devicetype-library/pull/4238
- https://github.com/netbox-community/devicetype-library/security/advisories/GHSA-
FAQ
What is CVE-2026-54752?
CVE-2026-54752 is a vulnerability with a CVSS score of 9.6 (CRITICAL). NetBox Device Type Library is a collection of community-sourced device type definitions for import into NetBox. The validation test harness can deserialize pull-request-controlled tracked pickle cache...
How severe is CVE-2026-54752?
CVE-2026-54752 has been rated CRITICAL with a CVSS base score of 9.6/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-54752?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.