CVE-2026-34203 Nautobot: Management of users via REST API does not apply configured password validators
Attackers can create or modify users with weak passwords via REST API, bypassing configured password validation rules in Nautobot.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-34203?
CVE-2026-34203 is a low-severity vulnerability in nautobot, published on 31 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Official 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.
Weakness: CWE-521
Which versions are affected by CVE-2026-34203?
5 open source packages ship an affected version, including nautobot. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
nautobot PyPI | All versions | 2.4.30, 3.0.10 |
nautobot PyPI | All versions | 2.4.30 |
nautobot PyPI | All versions | 2.4.30 |
nautobot PyPI | From 3.0.0 | 3.0.10 |
nautobot PyPI | From 3.0.0 | 3.0.10 |
Products include Networktocode Nautobot.
How do I fix CVE-2026-34203?
Upgrade nautobot to a fixed version for your release line: 2.4.30 or 3.0.10.
Is CVE-2026-34203 being exploited?
There is no known exploitation of CVE-2026-34203 in the wild and no public exploit code.
Other vulnerabilities in nautobot
- CVE-2026-44797 Nautobot: Webhook definitions could be used for server-side request forgery (SSRF)
- CVE-2024-34707 Nautobot's BANNER_* configuration can be used to inject arbitrary HTML content into Nautobot pages
- CVE-2024-32979 Reflected Cross-site Scripting potential in all object list views in Nautobot
- CVE-2023-25657 Remote code execution in Jinja2 template rendering in Nautobot
- CVE-2026-44798 Nautobot: GitRepository.current_head field should not be writable through REST API
Sources
Also known as GHSA-xmpv-j7p2-j873, PYSEC-2026-2224.