CVE-2023-51649: Nautobot Remote Code Execution Vulnerability
LOWCVE-2023-51649 is a LOW (CVSS 3.5) remote code execution vulnerability (CWE-863: Incorrect Authorization) affecting Nautobot libraries in the PyPI ecosystem. The issue involves nautobot missing object-level permissions enforcement when running job buttons. Remediation is available by upgrading affected packages to version 1.6.8, 2.1.0.
CVE-2023-51649 at a Glance
Security Impact
CVSS: 3.5
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L).
How to Fix CVE-2023-51649
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.
pip install nautobot>=1.6.8
pip install nautobot>=2.1.0
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-2023-51649, 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 1.6.8), 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-863: Incorrect Authorization, where the product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check. 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
CVE-2023-51649 Affected Nautobot Versions
2 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
nautobot
|
PyPI |
≥ 1.5.14
< 1.6.8
|
1.6.8
|
|
nautobot
|
PyPI |
≥ 2.0.0
< 2.1.0
|
2.1.0
|
References
Frequently Asked Questions
What is CVE-2023-51649?
Which Nautobot versions are affected?
What version fixes CVE-2023-51649?
Is nautobot affected?
What is the CVSS score of CVE-2023-51649?
What CWE is associated with CVE-2023-51649?
How can I check PyPI dependencies for CVE-2023-51649?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-vf5m-xrhm-v999",
"modified" : "2026-06-09T13:05:09Z",
"published" : "2023-12-22T19:51:53Z",
"aliases" : [ "CVE-2023-51649" ],
"summary" : "Nautobot missing object-level permissions enforcement when running Job Buttons",
"details" : "### Impact\n\nWhen submitting a Job to run via a Job Button, only the model-level `extras.run_job` permission is checked (i.e., does the user have permission to run Jobs in general?). Object-level permissions (i.e., does the user have permission to run this *specific* Job?) are not enforced by the URL/view used in this case (`/extras/job-button/<uuid>/run/`) The effect is that a user with permissions to run even a single Job can actually run all configured JobButton Jobs.\n\n> Not all Jobs can be configured as JobButtons; only those implemented as subclasses of `JobButtonReceiver` can be used in this way, so this vulnerability only applies specifically to `JobButtonReceiver` subclasses.\n\nAdditionally, although the documentation states that both `extras.run_job` permission and `extras.run_jobbutton` permission must be granted to a user in order to run Jobs via JobButton, the `extras.run_jobbutton` permission is not actually enforced by the view code, only by the UI by disabling the button from being clicked normally. Furthermore, the `extras.run_jobbutton` permission never prevented invoking Jobs (including `JobButtonReceiver` subclasses) via the normal \"Job Run\" UI, so after some discussion, we've decided that the `extras.run_jobbutton` permission is redundant, and as it never achieved its stated/documented purpose, the fixes below will remove the UI check for `extras.run_jobbutton` and all other references to the `extras.run_jobbutton` permission, rather than adding enforcement of this previously unenforced permission.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nFix will be available in Nautobot 1.6.8 (https://github.com/nautobot/nautobot/pull/4995) and 2.1.0 (https://github.com/nautobot/nautobot/pull/4993)\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nPartial mitigation can be achieved by auditing `JobButtonReceiver` subclasses defined in the system and restricting which users are permitted to create or edit JobButton records. \n\n### References\n\n- https://github.com/nautobot/nautobot/issues/4988\n- https://github.com/nautobot/nautobot/pull/4993\n- https://github.com/nautobot/nautobot/pull/4995",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:L"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "PyPI",
"name" : "nautobot"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "1.5.14"
}, {
"fixed" : "1.6.8"
} ]
} ]
}, {
"package" : {
"ecosystem" : "PyPI",
"name" : "nautobot"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "2.0.0"
}, {
"fixed" : "2.1.0"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/nautobot/nautobot/security/advisories/GHSA-vf5m-xrhm-v999"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-51649"
}, {
"type" : "WEB",
"url" : "https://github.com/nautobot/nautobot/issues/4988"
}, {
"type" : "WEB",
"url" : "https://github.com/nautobot/nautobot/pull/4993"
}, {
"type" : "WEB",
"url" : "https://github.com/nautobot/nautobot/pull/4995"
}, {
"type" : "WEB",
"url" : "https://github.com/nautobot/nautobot/commit/3d964f996f4926126c1d7853ca87b2ff475997a2"
}, {
"type" : "WEB",
"url" : "https://github.com/nautobot/nautobot/commit/d33d0c15a36948c45244e5b5e10bc79b8e62de7f"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/nautobot/nautobot"
}, {
"type" : "WEB",
"url" : "https://github.com/pypa/advisory-database/tree/main/vulns/nautobot/PYSEC-2023-287.yaml"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-863" ],
"severity" : "LOW",
"github_reviewed" : true,
"github_reviewed_at" : "2023-12-22T19:51:53Z",
"nvd_published_at" : "2023-12-22T17:15:10Z"
}
}