Inefficient regular expression complexity in Nautobot - CVE-2026-44796
Published: May 11, 2026
Vulnerability identifier: #VU130972
CSH Severity: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-44796
CWE-ID: CWE-1333
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Nautobot
Nautobot
Software vendor:
Nautobot
Nautobot
Description
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to inefficient regular expression complexity in object bulk rename UI endpoints when processing a crafted regular expression in the find field with the use_regex flag enabled. A remote user can send a specially crafted request to cause a denial of service.
The issue can result in application-wide impact.
Remediation
Install security update from vendor's website.