CVE-2026-44796 PUBLISHED

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

Assigner: GitHub_M
Reserved: 07.05.2026 Published: 28.05.2026 Updated: 28.05.2026

Nautobot 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.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 6.5

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

CVSS 3.1

Product Status

Vendor	nautobot
Product	nautobot
Versions	Version >= 3.0.0a2, < 3.1.2 is affected Version < 2.4.33 is affected

References

Problem Types

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