Missing Authorization Vulnerability in MLflow's Experiment-scoped Label Schema CRUD API
CVE-2026-13484

2.3LOW

Key Information:

Vendor

MLflow

Status
Mlflow
Vendor
CVE Published:
28 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-13484?

A vulnerability exists in the MLflow's Experiment-scoped Label Schema CRUD API, allowing attackers to manipulate its functionality due to missing authorization checks. This issue can be exploited remotely, posing risks to data integrity. Despite the high complexity associated with the attack, the exploit has been publicly disclosed, raising the need for immediate remediation. The proposed enhancements to the authorization handlers are still pending, leaving the product open to potential attacks.

Affected Version(s)

MLflow 4666cffc7912ea606d592fc38d6a75e2935f65e7

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-13484 - Proof of Concept

References

https://vuldb.com/vuln/374481
vdb-entry
https://vuldb.com/vuln/374481/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-13484
third-party-advisory

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dem00 (VulDB User)
VulDB CNA Team
.