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MEDIUM severity

Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)GHSA-qrpw-gjvh-x5gm

MEDIUMFix: nautobot/nautobot@5a30d09

GHSA-qrpw-gjvh-x5gm is a medium-severity (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in nautobot. A fix is available for nautobot — see the affected versions and patch details below.

Also known asCVE-2026-44796PYSEC-2026-2226
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 12, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for GHSA-qrpw-gjvh-x5gm.

EPSS Exploitation Probability

via FIRST.org ↗
0.3%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs24th percentile — riskier than 24% of all scored CVEsHighest risk
0.00%0.35%0.71%1.06%0.0%0.3%Jun 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
🐍nautobot🐍nautobot

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects PyPI packages — download data is not available via public APIs for these ecosystems.

Description

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

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
🐍PyPInautobot≥ 3.0.0a2&&< 3.1.23.1.2pip install --upgrade 'nautobot==3.1.2'
🐍PyPInautobotall versions2.4.33pip install --upgrade 'nautobot==2.4.33'

Affected Products

1 product · 2 configurations
Application
nautobotnetworktocode
≥ 3.0.0 && < 3.1.2
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for nautobot, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update nautobot to 3.1.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-qrpw-gjvh-x5gm is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Frequently Asked Questions

### 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 wor
O3 Security · Impact-Aware SCA

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