Answer in brief
CVE-2025-61594 records a High severity (CVSS 7.5) vulnerability in URI Credential Leakage Bypass over CVE-2025-27221. The current sources do not mark it as known exploited. The current feed maps uri (rubygems), uri (rubygems), uri (rubygems). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps uri (rubygems), uri (rubygems), uri (rubygems). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| urirubygems | >=0 <0.12.5 | 0.12.5 |
| urirubygems | >=0.13.0 <0.13.3 | 0.13.3 |
| urirubygems | >=1.0.0 <1.0.4 | 1.0.4 |
Published upstream
Dec 30, 2025
Evidence: source:osv:source_dates:source-dates:recordSource modified
Sep 10, 2026
Evidence: source:osv:source_dates:source-dates:recordFirst seen by HOL
Aug 8, 2026
### Impact In affected URI version, a bypass exists for the fix to CVE-2025-27221 that can expose user credentials. 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. The vulnerability affects the `uri` gem bundled with the following Ruby series: * 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) ### Patches Upgrade to 0.12.5, 0.13.3 or 1.0.4 ### References * https://www.ruby-lang.org/en/news/2025/02/26/security-advisories/ * https://hackerone.com/reports/2957667
Quoted source text, attributed separately from HOL analysis.