IndexError during reindex command when ImageAttachment filenames contain forward slashes #1269

New Issue

MrUnknownDE · 2026-04-05T22:45:41+02:00

MrUnknownDE commented

2026-04-05 22:45:41 +02:00

Originally created by @arcticash on 9/11/2025

NetBox Edition

NetBox Community

NetBox Version

v4.4.0

Python Version

3.12

Steps to Reproduce

Upload an image attachment with a name containing forward slashes (e.g., "Rack Picture 7/10/24")
Run python manage.py reindex --lazy
Command fails when processing the ImageAttachment

Example Problematic Filenames:

image-attachments/rack_66_Rack Picture 7/10/24.jpeg → os.path.basename() returns 24.jpeg
image-attachments/location_279_Room 106A 7/10/24.jpeg → os.path.basename() returns 24.jpeg

Expected Behavior

The update should complete successfully by altering the names of the objects to remove the problem symbols, or fail and specifying what the problem is.

Observed Behavior

The manage.py reindex --lazy command fails with an IndexError: list index out of range when processing ImageAttachment objects that have filenames containing forward slashes.

Error Traceback:

File "/opt/netbox/netbox/extras/models/models.py", line 731, in filename
  return os.path.basename(self.image.name).split('_', 2)[2]
         ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^
IndexError: list index out of range

Suspected Root Cause:

Disclaimer - this is what AI thinks the problem is!
The ImageAttachment.filename property assumes all filenames follow the pattern prefix_objectid_actualfilename.ext and tries to extract the third component after splitting on underscores. However, when image names contain forward slashes (like dates "7/10/24"), os.path.basename() only returns the portion after the last slash, which may not contain the expected underscore pattern.

*Originally created by @arcticash on 9/11/2025* ### NetBox Edition NetBox Community ### NetBox Version v4.4.0 ### Python Version 3.12 ### Steps to Reproduce 1. Upload an image attachment with a name containing forward slashes (e.g., "Rack Picture 7/10/24") 2. Run `python manage.py reindex --lazy` 3. Command fails when processing the `ImageAttachment` ## Example Problematic Filenames: image-attachments/rack_66_Rack Picture 7/10/24.jpeg → os.path.basename() returns 24.jpeg image-attachments/location_279_Room 106A 7/10/24.jpeg → os.path.basename() returns 24.jpeg ### Expected Behavior The update should complete successfully by altering the names of the objects to remove the problem symbols, or fail and specifying what the problem is. ### Observed Behavior The `manage.py reindex --lazy` command fails with an `IndexError: list index out of range` when processing `ImageAttachment` objects that have filenames containing forward slashes. ## Error Traceback: ``` File "/opt/netbox/netbox/extras/models/models.py", line 731, in filename return os.path.basename(self.image.name).split('_', 2)[2] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^ IndexError: list index out of range ``` ## Suspected Root Cause: _Disclaimer - this is what AI thinks the problem is!_ The `ImageAttachment.filename` property assumes all filenames follow the pattern prefix_objectid_actualfilename.ext and tries to extract the third component after splitting on underscores. However, when image names contain forward slashes (like dates "7/10/24"), `os.path.basename()` only returns the portion after the last slash, which may not contain the expected underscore pattern.

MrUnknownDE closed this issue

2026-04-05 22:45:41 +02:00

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Branches Tags

main

21455-sql-indexes-audit

21357-register-model-actions

feature

20924-plugin-ui-components

21766-improve-test-coverage-for-sortable-table-columns

21157-export-template-public-models

21025-pre-render-config-contexts

21364-swagger

feature-ip-prefix-link

20911-dropdown-3

fix_module_substitution

21160-filterset

20911-dropdown-2

20044-elevation-stuck-lightmode

7604-filter-modifiers-v3

20660-script-load

19724-graphql

14884-script

19720-macaddress-interface-generic-relation

fix-19669-api-image-download

7604-filter-modifiers

19275-fixes-interface-bulk-edit

fix-17794-get_field_value_return_list

11507-show-aggregate-and-rir-on-api

9583-add_column_specific_search_field_to_tables

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Reference: github/netbox#1269