CVE-2026-44796
Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)
Description
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.
INFO
Published Date :
May 28, 2026, 6:16 p.m.
Last Modified :
May 29, 2026, 1:27 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | MITRE-CVE |
Solution
- Update Nautobot to version 2.4.33 or 3.1.2.
- Apply security patches if updating is not possible.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-44796.
| URL | Resource |
|---|---|
| https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd | Patch |
| https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee | Patch |
| https://github.com/nautobot/nautobot/releases/tag/v2.4.33 | Product Release Notes |
| https://github.com/nautobot/nautobot/releases/tag/v3.1.2 | Product Release Notes |
| https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm | Patch Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-44796 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-44796
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-44796 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-44796 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 29, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:networktocode:nautobot:*:*:*:*:*:*:*:* versions up to (excluding) 2.4.33 *cpe:2.3:a:networktocode:nautobot:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (excluding) 3.1.2 Added Reference Type GitHub, Inc.: https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd Types: Patch Added Reference Type GitHub, Inc.: https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee Types: Patch Added Reference Type GitHub, Inc.: https://github.com/nautobot/nautobot/releases/tag/v2.4.33 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/nautobot/nautobot/releases/tag/v3.1.2 Types: Product, Release Notes Added Reference Type GitHub, Inc.: https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm Types: Patch, Vendor Advisory -
New CVE Received by [email protected]
May. 28, 2026
Action Type Old Value New Value Added Description 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-400 Added CWE CWE-1333 Added Reference https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd Added Reference https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee Added Reference https://github.com/nautobot/nautobot/releases/tag/v2.4.33 Added Reference https://github.com/nautobot/nautobot/releases/tag/v3.1.2 Added Reference https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm