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PYSEC-2026-1689
nautobotnautobotImpact
Files uploaded by users to Nautobot's MEDIA_ROOT directory, including DeviceType image attachments as well as images attached to a Location, Device, or Rack, are served to users via a URL endpoint that was not enforcing user authentication. As a consequence, such files can be retrieved by anonymous users who know or can guess the correct URL for a given file.
For DeviceType image attachments, a mitigating factor is that no URL endpoint exists for listing the contents of the devicetype-images/ subdirectory, and the file names are as specified by the uploading user, so any given DeviceType image attachment can only be retrieved by correctly guessing its file name.
Similarly, for all other image attachments, while the images can be listed by accessing the /api/extras/image-attachments/ endpoint as an authenticated user only, absent that authenticated access, accessing the files would again require guessing file names correctly.
Patches
Nautobot v2.4.10 and v1.6.32 will address this issue by adding enforcement of Nautobot user authentication to this endpoint.
Workarounds
No workaround other than applying the patch given in https://github.com/nautobot/nautobot/pull/6672 (2.x) or https://github.com/nautobot/nautobot/pull/6703 (1.6)
References
Are there any links users can visit to find out more?
- https://github.com/nautobot/nautobot/commit/9c892dc300429948a4714f743c9c2879d8987340
- https://github.com/nautobot/nautobot/commit/d99a53b065129cff3a0fa9abe7355a9ef1ad4c95
The vulnerability can be exploited over the network without needing physical access. It is difficult for an attacker to exploit this vulnerability and may require special conditions. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability.
Limited exploitation activity has been observed. Close monitoring and planned remediation are recommended.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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