---
id: CVE-2026-44796
aliases:
  - GHSA-qrpw-gjvh-x5gm
  - PYSEC-2026-2226
title: >-
  Nautobot: Object bulk rename UI actions vulnerable to denial of service by
  crafted regular expression (REDoS)
summary: >-
  Nautobot: Object bulk rename UI actions vulnerable to denial of service by
  crafted regular expression (REDoS)
severity: medium
cvss: 6.5
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
vendor: nautobot
product: nautobot
ecosystem: pip
affected:
  - 'nautobot >= 3.0.0a2, < 3.1.2'
  - nautobot < 2.4.33
patched:
  - nautobot 3.1.2
  - nautobot 2.4.33
published: '2026-05-13'
updated: '2026-07-13'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-qrpw-gjvh-x5gm'
references:
  - url: >-
      https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-44796'
  - url: >-
      https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd
  - url: >-
      https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee
  - url: 'https://github.com/nautobot/nautobot'
  - url: 'https://github.com/nautobot/nautobot/releases/tag/v2.4.33'
  - url: 'https://github.com/nautobot/nautobot/releases/tag/v3.1.2'
tags:
  - osv
  - pip
epss: 0.0056
epssPercentile: 0.44217
ingestedAt: '2026-07-13T18:58:02.244Z'
---

## Overview

### Impact

Nautobot UI object-bulk-rename endpoints (for example, `/dcim/interfaces/rename/`) were vulnerable to application-wide denial of service via maliciously crafted regular expressions in the `find` field in combination with the `use_regex` flag.

### Patches

A general-purpose timeout has been added to these endpoints in Nautobot v2.4.33 and v3.1.2, which ensures that the request will fail early with an appropriate message if regular expression evaluation takes more than a short period of time, instead of continuing to execute for an indefinite duration.

### Workarounds

No known workaround has been identified at this time.

### References

- 2.4.33 (<a href="https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee">patch</a>)
- 3.1.2 (<a href="https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd">patch</a>)

## Affected packages

- `nautobot >= 3.0.0a2, < 3.1.2`
- `nautobot < 2.4.33`

## Remediation

Upgrade to a patched release:

- `nautobot 3.1.2`
- `nautobot 2.4.33`