CVE-2026-34203: Nautobot Management Of Users Vulnerability

LOW
Advisory Identifier: GHSA-xmpv-j7p2-j873
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CVSS 2.7
CWE-521
Published
Advisory Summary

CVE-2026-34203 is a LOW (CVSS 2.7) management of users vulnerability (CWE-521: Weak Password Requirements) affecting Nautobot libraries in the PyPI ecosystem. The issue involves management of users via rest api does not apply configured password validators. Remediation is available by upgrading affected packages to version 2.4.30, 3.0.10.

CVE-2026-34203 at a Glance

CVE Identifier CVE-2026-34203
GHSA Identifier GHSA-xmpv-j7p2-j873
Severity LOW
CVSS v3.1 Base Score 2.7
CWE Classification CWE-521: Weak Password Requirements
Affected Product Nautobot
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 2.7

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required High (PR:H)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-34203

To remediate this vulnerability, upgrade all affected Nautobot dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

nautobot fixed: 2.4.30 
pip install nautobot>=2.4.30
nautobot fixed: 3.0.10 
pip install nautobot>=3.0.10
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show nautobot

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2026-34203, inspect your installed packages using pip:

pip show nautobot

Analyze the terminal output to locate any version of Nautobot in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.4.30), your application is affected.

Note: The pip show nautobot command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-521: Weak Password Requirements, where the product does not require that users should have strong passwords. In Nautobot, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact In Nautobot versions prior to 2.4.30 or prior to 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. Management of users via the Nautobot admin UI does correctly enforce configured password validation at this time. ### Patches The issue is resolved in Nautobot versions 2.4.30 and 3.0.10 and later. - https://github.com/nautobot/nautobot/pull/8778 - https://github.com/nautobot/nautobot/pull/8779 ### Workarounds Review which users have been granted object permissions to create and modify user accounts as well as having access tokens for the REST API, and restrict access as appropriate. It may be appropriate furthermore to rotate passwords for any user accounts suspected to have been given weak passwords. ### References - https://docs.djangoproject.com/en/4.2/ref/settings/#std-setting-AUTH_PASSWORD_VALIDATORS - http://docs.djangoproject.com/en/4.2/topics/auth/passwords/#password-validation

CVE-2026-34203 Affected Nautobot Versions

2 component(s)
Fixed Versions:
2.4.303.0.10
Product / Package Ecosystem Affected Versions Fixed Version
nautobot
pypi/nautobot
PyPI
< 2.4.30
2.4.30
nautobot
pypi/nautobot
PyPI
≥ 3.0.0
< 3.0.10
3.0.10

References

GitHub Advisory / Wiki ADVISORY
https://github.com/nautobot/nautobot/security/advisories/GHSA-xmpv-j7p2-j873
NVD — CVE-2026-34203 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34203
Nautobot Source Repository REPOSITORY
https://github.com/nautobot/nautobot/pull/8778
Nautobot Source Repository REPOSITORY
https://github.com/nautobot/nautobot/pull/8779
Security Fix Commit FIX COMMIT
https://github.com/nautobot/nautobot/commit/589f7caf54124ad76bc9fcbb7bdcaa25627cd598
Security Fix Commit FIX COMMIT
https://github.com/nautobot/nautobot/commit/d1ef3135aa02fa07de061e8c085f8cce425fe8c9
Nautobot Source Repository REPOSITORY
https://github.com/nautobot/nautobot

Frequently Asked Questions

What is CVE-2026-34203?
CVE-2026-34203 is a security vulnerability in Nautobot involving Management of users via REST API does not apply configured password validators under CWE-521: Weak Password Requirements.
Which Nautobot versions are affected?
Affected versions include releases prior to 2.4.30, 3.0.10 across affected packages: nautobot.
What version fixes CVE-2026-34203?
Upgrading to 2.4.30, 3.0.10 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nautobot affected?
Yes, nautobot is affected in releases prior to 2.4.30, 3.0.10. Upgrade your dependency to 2.4.30, 3.0.10 or later.
What is the CVSS score of CVE-2026-34203?
CVE-2026-34203 has a CVSS v3.1 base score of 2.7 (LOW) with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2026-34203?
CVE-2026-34203 is classified under CWE-521: Weak Password Requirements (The product does not require that users should have strong passwords.).
How can I check PyPI dependencies for CVE-2026-34203?
Run the dependency tree command: 'pip show nautobot'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xmpv-j7p2-j873",
  "modified" : "2026-03-31T23:07:23Z",
  "published" : "2026-03-31T23:07:23Z",
  "aliases" : [ "CVE-2026-34203" ],
  "summary" : "Nautobot: Management of users via REST API does not apply configured password validators",
  "details" : "### Impact\n\nIn Nautobot versions prior to 2.4.30 or prior to 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.\n\nManagement of users via the Nautobot admin UI does correctly enforce configured password validation at this time.\n\n### Patches\n\nThe issue is resolved in Nautobot versions 2.4.30 and 3.0.10 and later.\n\n- https://github.com/nautobot/nautobot/pull/8778\n- https://github.com/nautobot/nautobot/pull/8779\n\n### Workarounds\n\nReview which users have been granted object permissions to create and modify user accounts as well as having access tokens for the REST API, and restrict access as appropriate.\n\nIt may be appropriate furthermore to rotate passwords for any user accounts suspected to have been given weak passwords.\n\n### References\n\n- https://docs.djangoproject.com/en/4.2/ref/settings/#std-setting-AUTH_PASSWORD_VALIDATORS\n- http://docs.djangoproject.com/en/4.2/topics/auth/passwords/#password-validation",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "nautobot"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.4.30"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "nautobot"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "3.0.0"
      }, {
        "fixed" : "3.0.10"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/security/advisories/GHSA-xmpv-j7p2-j873"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-34203"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/pull/8778"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/pull/8779"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/commit/589f7caf54124ad76bc9fcbb7bdcaa25627cd598"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/nautobot/nautobot/commit/d1ef3135aa02fa07de061e8c085f8cce425fe8c9"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/nautobot/nautobot"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-521" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-31T23:07:23Z",
    "nvd_published_at" : "2026-03-31T20:16:28Z"
  }
}