CVE-2026-25138
February 25, 2026
Rucio is a software framework that provides functionality to organize, manage, and access large volumes of scientific data using customizable policies. Prior to versions 35.8.3, 38.5.4, and 39.3.1, the WebUI login endpoint returns distinct error messages depending on whether a supplied username exists, allowing unauthenticated attackers to enumerate valid usernames. Versions 35.8.3, 38.5.4, and 39.3.1 fix the issue.
Affected Packages
rucio-webui (PYTHON):
Affected version(s) >=36.0.0rc1 <38.5.4Fix Suggestion:
Update to version 38.5.4rucio-webui (PYTHON):
Affected version(s) >=39.0.0rc1 <39.3.1Fix Suggestion:
Update to version 39.3.1rucio-webui (PYTHON):
Affected version(s) >=1.5.10 <35.8.3Fix Suggestion:
Update to version 35.8.3Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
LOW
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Observable Response Discrepancy
EPSS
Base Score:
0.05
