CRITICAL

CVE-2026-2635

CVSS v3

9.8

CRITICAL

EPSS Score

1.4 %

exploit probability, as of 2026-10-19

CISA KEV

known exploited

Exploitation

—

SSVC status

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Affected and fixed versions

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

mlflowPyPIall versions · fixed in 3.8.0rc0

Vendor advisories

CVE-2026-2635 Red Hat Product Security
mlflow: MLflow Use of Default Password Authentication Bypass Vulnerability

Full record on NVD

Description

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.

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Published: 2026-02-20
Last Modified: 2026-04-14

Frequently asked questions

What is CVE-2026-2635?

Is CVE-2026-2635 actively exploited?

Active exploitation of CVE-2026-2635 has not been confirmed. Its EPSS score was 1.4% on 2026-10-19, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-2635?

CVE-2026-2635 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

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