CVE-2025-27221: Infoleak
First published: Mon Mar 03 2025(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| rubygems/uri | >=1.0.0<1.0.3 | 1.0.3 |
| rubygems/uri | >=0.13.0<0.13.2 | 0.13.2 |
| rubygems/uri | >=0.12.0<0.12.4 | 0.12.4 |
| rubygems/uri | <0.11.3 | 0.11.3 |
| Tal Url Ruby | <0.11.3 | |
| Tal Url Ruby | >=0.12.0<0.12.4 | |
| Tal Url Ruby | >=0.13.0<0.13.2 | |
| Tal Url Ruby | >=1.0.0<1.0.3 | |
| debian/ruby2.7 | <=2.7.4-1+deb11u1 | 2.7.4-1+deb11u5 |
| debian/ruby3.1 | <=3.1.2-7+deb12u1 | |
| debian/ruby3.3 | 3.3.8-1 | |
| debian/rubygems | <=3.2.5-2<=3.3.15-2 | 3.6.7-2 |
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Reference Links
- https://github.com/ruby/uri/pull/154
- https://github.com/ruby/uri/pull/155
- https://github.com/ruby/uri/pull/156
- https://github.com/ruby/uri/pull/157
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/uri/CVE-2025-27221.yml
- https://www.cve.org/CVERecord?id=CVE-2025-27221
- https://www.ruby-lang.org/en/news/2025/02/26/security-advisories
- https://nvd.nist.gov/vuln/detail/CVE-2025-27221
- https://hackerone.com/reports/2957667
- https://github.com/advisories/GHSA-22h5-pq3x-2gf2 (Advisory)
- https://launchpad.net/bugs/cve/CVE-2025-27221
- https://github.com/ruby/uri/commit/3675494839112b64d5f082a9068237b277ed1495
- https://github.com/ruby/uri/commit/2789182478f42ccbb62197f952eb730e4f02bfc5
- https://security-tracker.debian.org/tracker/CVE-2025-27221
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-27221
- https://ubuntu.com/security/CVE-2025-27221
- https://access.redhat.com/errata/RHSA-2025:4063
- https://bugzilla.redhat.com/show_bug.cgi?id=2349700
Frequently Asked Questions
What is the severity of CVE-2025-27221?
CVE-2025-27221 poses a risk of userinfo leakage, which can lead to unauthorized access to sensitive information.
How do I fix CVE-2025-27221?
To remediate CVE-2025-27221, upgrade the uri gem to version 1.0.3, 0.13.2, 0.12.4, or 0.11.3 as applicable.
What is the impact of CVE-2025-27221 on my application?
CVE-2025-27221 can lead to leaking sensitive user credentials, compromising user privacy and security.
Which versions of the uri gem are affected by CVE-2025-27221?
CVE-2025-27221 affects versions of the uri gem prior to 1.0.3, 0.13.2, 0.12.4, and 0.11.3.
Is there a workaround for CVE-2025-27221 if I cannot upgrade?
No specific workarounds are recommended for CVE-2025-27221; upgrading to the fixed versions is the only effective solution.
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