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CVE-2025-61594— URI Credential Leakage Bypass over CVE-2025-27221

Quick assessment

Affected
ruby uri
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

URI是Ruby开源的一个提供类来处理统一资源标识符的模块。 URI 0.12.5之前版本、0.13.3之前版本和1.0.4之前版本存在安全漏洞，该漏洞源于使用+运算符组合URI时可能泄露原始URI中的敏感信息如密码，可能导致凭据泄露。

AI Predicted 5.3 Difficulty: Trivial EPSS 0.56% · P45

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-61594

Vulnerability Information
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Vulnerability Title
URI Credential Leakage Bypass over CVE-2025-27221
Source: CVE Program / CVE List V5
Vulnerability Description
URI is a module providing classes to handle Uniform Resource Identifiers. In versions 0.12.4 and earlier (bundled in Ruby 3.2 series) 0.13.2 and earlier (bundled in Ruby 3.3 series), 1.0.3 and earlier (bundled in Ruby 3.4 series), when using the + operator to combine URIs, sensitive information like passwords from the original URI can be leaked, violating RFC3986 and making applications vulnerable to credential exposure. This is a a bypass for the fix to CVE-2025-27221 that can expose user credentials. This issue has been fixed in versions 0.12.5, 0.13.3 and 1.0.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
URI 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
URI是Ruby开源的一个提供类来处理统一资源标识符的模块。 URI 0.12.5之前版本、0.13.3之前版本和1.0.4之前版本存在安全漏洞，该漏洞源于使用+运算符组合URI时可能泄露原始URI中的敏感信息如密码，可能导致凭据泄露。
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

Vendor Product Affected Versions CPE Subscribe
ruby uri < 0.12.5 -

II. Public POCs for CVE-2025-61594

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III. Intelligence Information for CVE-2025-61594

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Patches & Fixes for CVE-2025-61594 (3)

Vendor Advisories for CVE-2025-61594 (2)

Other References for CVE-2025-61594 (1)

IV. Related Vulnerabilities

Same product: uri
Same vendor: ruby
Same weakness: CWE-200

V. Comments for CVE-2025-61594

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