CVE-2026-13484
MLflow Experiment-scoped Label Schema CRUD API authorization
Description
A vulnerability has been found in MLflow up to 4666cffc7912ea606d592fc38d6a75e2935f65e7. The impacted element is an unknown function of the component Experiment-scoped Label Schema CRUD API. Such manipulation leads to missing authorization. It is possible to launch the attack remotely. A high complexity level is associated with this attack. The exploitability is regarded as difficult. The exploit has been disclosed to the public and may be used. A reply to the GitHub issue explains, that "[t]he labeling schema PR has not been merged yet. The auth handlers will be added before the release."
INFO
Published Date :
June 28, 2026, 9:16 a.m.
Last Modified :
July 1, 2026, 2:03 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 2.0 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | LOW | [email protected] |
Solution
- Merge the PR with authentication handlers.
- Release the updated MLflow version.
- Review API access controls.
- Verify authorization enforcement.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-13484.
| URL | Resource |
|---|---|
| https://github.com/mlflow/mlflow/ | Product |
| https://github.com/mlflow/mlflow/issues/23608 | Issue Tracking Third Party Advisory Exploit |
| https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877 | Third Party Advisory VDB Entry Exploit Issue Tracking |
| https://vuldb.com/cve/CVE-2026-13484 | Third Party Advisory VDB Entry |
| https://vuldb.com/submit/837658 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/374481 | Third Party Advisory VDB Entry |
| https://vuldb.com/vuln/374481/cti | Permissions Required VDB Entry |
| https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877 | Third Party Advisory VDB Entry Exploit Issue Tracking |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-13484 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-13484
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-13484 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-13484 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jul. 01, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CPE Configuration OR *cpe:2.3:a:lfprojects:mlflow:*:*:*:*:*:*:*:* versions up to (including) 2026-05-26 Added Reference Type VulDB: https://github.com/mlflow/mlflow/ Types: Product Added Reference Type VulDB: https://github.com/mlflow/mlflow/issues/23608 Types: Exploit, Issue Tracking, Third Party Advisory Added Reference Type VulDB: https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877 Types: Exploit, Issue Tracking, Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/cve/CVE-2026-13484 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/submit/837658 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/374481 Types: Third Party Advisory, VDB Entry Added Reference Type VulDB: https://vuldb.com/vuln/374481/cti Types: Permissions Required, VDB Entry Added Reference Type CISA-ADP: https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877 Types: Exploit, Issue Tracking, Third Party Advisory, VDB Entry -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 30, 2026
Action Type Old Value New Value Added Reference https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877 Added SSVC {'id': 'CVE-2026-13484', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-30T18:36:05.327423Z'} -
New CVE Received by [email protected]
Jun. 28, 2026
Action Type Old Value New Value Added Affected [{'cpes': ['cpe:2.3:a:mlflow:mlflow:*:*:*:*:*:*:*:*'], 'vendor': 'n/a', 'modules': ['Experiment-scoped Label Schema CRUD API'], 'product': 'MLflow', 'versions': [{'status': 'affected', 'version': '4666cffc7912ea606d592fc38d6a75e2935f65e7'}]}] Added Description A vulnerability has been found in MLflow up to 4666cffc7912ea606d592fc38d6a75e2935f65e7. The impacted element is an unknown function of the component Experiment-scoped Label Schema CRUD API. Such manipulation leads to missing authorization. It is possible to launch the attack remotely. A high complexity level is associated with this attack. The exploitability is regarded as difficult. The exploit has been disclosed to the public and may be used. A reply to the GitHub issue explains, that "[t]he labeling schema PR has not been merged yet. The auth handlers will be added before the release." Added CVSS V4.0 AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CVSS V3.1 AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L Added CVSS V2 (AV:N/AC:H/Au:S/C:P/I:P/A:P) Added CWE CWE-862 Added CWE CWE-863 Added Reference https://github.com/mlflow/mlflow/ Added Reference https://github.com/mlflow/mlflow/issues/23608 Added Reference https://github.com/mlflow/mlflow/issues/23608#issuecomment-4560963877 Added Reference https://vuldb.com/cve/CVE-2026-13484 Added Reference https://vuldb.com/submit/837658 Added Reference https://vuldb.com/vuln/374481 Added Reference https://vuldb.com/vuln/374481/cti