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In the URI gem before 1.0.3 for Ruby, the URI handling methods (URI.join, URI#merge, URI#+) have an inadvertent leakage of authentication credentials because userinfo is retained even after changing the host.

🗓️ 19 Mar 2025 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

Ruby URI gem before 1.0.3 leaks credentials by keeping userinfo after host changes.

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Detection

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18 Feb 2026 09:13Current
6.9Medium risk
Vulners AI Score6.9
CVSS 3.13.2 - 5.3
EPSS0.00156
SSVC
1