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CVE-2026-25138— Rucio WebUI has Username Enumeration via Login Error Message

CVSS 5.3 · Medium EPSS 0.08% · P23
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I. Basic Information for CVE-2026-25138

Vulnerability Information
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Vulnerability Title
Rucio WebUI has Username Enumeration via Login Error Message
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
响应差异性信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Rucio 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rucio是rucio开源的一个科学数据管理工具。 Rucio 35.8.3之前版本、38.5.4之前版本和39.3.1之前版本存在安全漏洞，该漏洞源于WebUI登录端点返回不同的错误消息，可能导致未经验证的攻击者枚举有效用户名。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
ruciorucio < 35.8.3 -

II. Public POCs for CVE-2026-25138

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III. Intelligence Information for CVE-2026-25138

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Same Patch Batch · rucio · 2026-02-25 · 6 CVEs total

CVE-2026-251368.1 HIGHRucio WebUI has a Reflected Cross-site Scripting Vulnerability
CVE-2026-257337.3 HIGHRucio WebUI Vulnerable to Stored Cross-site Scripting (XSS) through Custom Rule Function
CVE-2026-257346.1 MEDIUMRucio WebUI has Stored Cross-site Scripting (XSS) in RSE Metadata
CVE-2026-257356.1 MEDIUMRucio WebUI has a Stored Cross-site Scripting (XSS) vulnerability its Identity Name
CVE-2026-257366.1 MEDIUMRucio WebUI has a Stored Cross-site Scripting (XSS) Vulnerability in its Custom RSE Attrib

IV. Related Vulnerabilities

Same product: rucio
Same vendor: rucio
Same weakness: CWE-204

V. Comments for CVE-2026-25138

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