CVE-2026-25138

MEDIUM EPSS 24.5%
Published Feb 25, 20264mo ago · Modified Jun 17, 20262w ago
5.3 CVSS 3.1
Medium
Find Similar
Published Feb 25, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago

Description

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.

CVSS Details

Base Score
5.3
Exploitability
3.9
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Low
Integrity None
Availability None

Threat Intelligence

EPSS Exploit Probability
24.5% percentile
Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-204

Affected Products 3

VendorProductVersionRange
cernrucio* <35.8.3
cernrucio*≥36.0.0  –  <38.5.4
cernrucio*≥39.0.0  –  <39.3.1

References 5

  • cheatsheetseries.owasp.org https://cheatsheetseries.owasp.org/cheatsheets/Authentication_Cheat_Sheet.html#authentication-and-error-messages
    Not Applicable
  • github.com https://github.com/rucio/rucio/releases/tag/35.8.3
    ProductRelease Notes
  • github.com https://github.com/rucio/rucio/releases/tag/38.5.4
    ProductRelease Notes
  • github.com https://github.com/rucio/rucio/releases/tag/39.3.1
    ProductRelease Notes
  • github.com https://github.com/rucio/rucio/security/advisories/GHSA-38wq-6q2w-hcf9
    ExploitVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.