CVE-2025-27221

3.2 LOW

Published: March 04, 2025 Modified: November 03, 2025

Description

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.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

CVSS v3.x Details

0.0 Low Medium High Critical 10.0

Vector String

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

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory

https://github.com/rubysec/ruby-advisory-db/blob/master/gems/uri/CVE-2025-27221.yml

Source: cve@mitre.org

Third Party Advisory

https://hackerone.com/reports/2957667

Source: cve@mitre.org

Permissions Required

https://lists.debian.org/debian-lts-announce/2025/03/msg00008.html

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.debian.org/debian-lts-announce/2025/05/msg00015.html

Source: af854a3a-2127-422b-91ae-364da2661108

4 reference(s) from NVD

Quick Stats

CVSS v3 Score

3.2 / 10.0

EPSS (Exploit Probability)

0.0%

11th percentile

Exploitation Status

Not in CISA KEV

Weaknesses (CWE)

CWE-212 CWE-212

Affected Vendors

ruby-lang

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