Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)

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Summary

CVECVE-2026-44796
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 18:16:33 UTC
Updated2026-05-29 13:27:23 UTC
DescriptionNautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.33 and 3.1.2, 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. This vulnerability is fixed in 2.4.33 and 3.1.2.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.000430000 probability, percentile 0.134530000 (date 2026-06-01)

Problem Types: CWE-400 | CWE-1333 | CWE-400 CWE-400: Uncontrolled Resource Consumption | CWE-1333 CWE-1333: Inefficient Regular Expression Complexity

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Networktocode Nautobot All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Nautobot Nautobot affected >= 3.0.0a2, < 3.1.2 Not specified
CNA Nautobot Nautobot affected < 2.4.33 Not specified

References

ReferenceSourceLinkTags
github.com/nautobot/nautobot/releases/tag/v2.4.33 [email protected] github.com Product, Release Notes
github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc38... [email protected] github.com Patch
github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm [email protected] github.com Patch, Vendor Advisory
github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb78... [email protected] github.com Patch
github.com/nautobot/nautobot/releases/tag/v3.1.2 [email protected] github.com Product, Release Notes
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