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VulnerabilityPublished Updated

CVE-2026-54752: netbox-community devicetype-library · Deserialization of Untrusted Data

Affects netbox-community devicetype-librarySource CVE Database V5

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Not known to be exploited · CVSS 9.6 Critical.

Data as of 1 Nov 2026, 11:03 UTC

CVSS 3.1 base score
9.6Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 51% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 1 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
netbox-communitydevicetype-libraryAffected
  • =< 1c6f7e2b93589b965318c6e67ac3504831f0e71e
Fixed in–
GitHubnetbox-community/devicetype-librarypkg:github/netbox-community/devicetype-libraryOther threatsAffected
  • *
Fixed in–

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AI-suggested

A fix is available and implemented in commit 1c6f7e2b93589b965318c6e67ac3504831f0e71e. Users and maintainers should update to the fixed version incorporating this commit. Until patched, avoid running tests on untrusted pull requests that can modify the pickle files or the test configuration to prevent arbitrary code execution.

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.

References

Community reviews

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