mlflow default password

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in mlflow. It has been rated as critical. The affected element is an unknown function. The manipulation leads to default password. This vulnerability is listed as CVE-2026-2635. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in mlflow (version unknown). It has been rated as critical. This issue affects an unknown function. The manipulation with an unknown input leads to a default password vulnerability. Using CWE to declare the problem leads to CWE-1393. The product uses default passwords for potentially critical functionality. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

MLflow Use of Default Password Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of MLflow. Authentication is not required to exploit this vulnerability. The specific flaw exists within the basic_auth.ini file. The file contains hard-coded default credentials. An attacker can leverage this vulnerability to bypass authentication and execute arbitrary code in the context of the administrator. Was ZDI-CAN-28256.

The advisory is shared at zerodayinitiative.com. The identification of this vulnerability is CVE-2026-2635. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 299880 (MLflow < 3.8.0 Authentication Bypass (ZDI-26-111)), which helps to determine the existence of the flaw in a target environment.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at Tenable (299880). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Default password
CWE: CWE-1393
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 299880
Nessus Name: MLflow < 3.8.0 Authentication Bypass (ZDI-26-111)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Timelineinfo

02/19/2026 Advisory disclosed
02/19/2026 +0 days VulDB entry created
02/25/2026 +6 days VulDB entry last update

Sourcesinfo

Advisory: zerodayinitiative.com
Status: Confirmed

CVE: CVE-2026-2635 (🔒)
GCVE (CVE): GCVE-0-2026-2635
GCVE (VulDB): GCVE-100-346913

Entryinfo

Created: 02/19/2026 16:04
Updated: 02/25/2026 09:54
Changes: 02/19/2026 16:04 (47), 02/22/2026 22:50 (12), 02/25/2026 09:54 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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