What’s Vulnerable › Vulnerabilities

CVE-2026-44796: Nautobot: Object bulk rename UI actions vulnerable to denial of service by crafted regular expression (REDoS)

• Severity: medium (CVSS 6.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-28 · updated 2026-10-14
• Weakness: CWE-400

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.

Affected products

• nautobot: before 2.4.33; from 3.0.0 before 3.1.2 — fixed in 2.4.33, 3.1.2

How to fix

Upgrade to a fixed version: nautobot 2.4.33, 3.1.2. Check the vendor advisory for mitigations.

References

• https://github.com/nautobot/nautobot/commit/5a30d0916953afbeedd24a784709e762cc3879cd
• https://github.com/nautobot/nautobot/commit/c2b766966d814a7141f62c7bc90c85fefb7892ee
• https://github.com/nautobot/nautobot/releases/tag/v2.4.33
• https://github.com/nautobot/nautobot/releases/tag/v3.1.2
• https://github.com/nautobot/nautobot/security/advisories/GHSA-qrpw-gjvh-x5gm

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