CVE-2026-34203: Nautobot: Management of users via REST API does not apply configured password validators

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-03-31 · updated 2026-07-24
Weakness: CWE-521

Description

Nautobot is a Network Source of Truth and Network Automation Platform. Prior to versions 2.4.30 and 3.0.10, user creation and editing via the REST API fails to apply the password validation rules defined by Django's AUTH_PASSWORD_VALIDATORS setting (which defaults to an empty list, i.e., no specific rules, but can be configured in Nautobot's nautobot_config.py to apply various rules if desired). This can potentially allow for the creation or modification of users to have passwords that are weak or otherwise do not comply with configured standards. This issue has been patched in versions 2.4.30 and 3.0.10.

Affected products

nautobot: before 2.4.30; from 3.0.0 before 3.0.10 — fixed in 2.4.30, 3.0.10

How to fix

Upgrade to a fixed version: nautobot 2.4.30, 3.0.10. Check the vendor advisory for mitigations.

References

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