CVE-2025-61594

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.

CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-200 CWE-200

CWE-212 CWE-212

Affected Products

Vendor	Product	Versions
ruby-lang	uri	< 0.12.5
ruby-lang	uri	0.13.0 — 0.13.3
ruby-lang	uri	1.0.0 — 1.0.4

References

Other References

https://github.com/advisories/GHSA-22h5-pq3x-2gf2 https://github.com/ruby/uri/security/advisories/GHSA-j4pr-3wm6-xx2r https://hackerone.com/reports/2957667 https://www.ruby-lang.org/en/news/2025/02/26/security-advisories

Frequently Asked Questions

What is CVE-2025-61594? +

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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2025-61594? +

CVE-2025-61594 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-61594? +

CVE-2025-61594 affects products from ruby-lang, specifically: uri. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-61594? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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