Fluid Attacks Database

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.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem	Package	Affected version	Patched versions
debian 11	rubygems	=3.2.5-2 \|\| >=0 <3.2.5-2+deb11u1	3.2.5-2+deb11u1
debian 12	rubygems	=3.3.15-2 \|\| >=0 <3.3.15-2+deb12u1	3.3.15-2+deb12u1
debian 13	rubygems	>=0 <3.6.6-1	3.6.6-1
debian 13	ruby3.3	>=0 <3.3.7-2	3.3.7-2
debian 14	ruby3.3	>=0 <3.3.7-2	3.3.7-2
debian 11	ruby2.7	=2.7.4-1 \|\| =2.7.4-1+deb11u1 \|\| =2.7.4-1+deb11u2 \|\| =2.7.4-1+deb11u3 \|\| =2.7.4-1+deb11u4 \|\| >=0 <2.7.4-1+deb11u5	2.7.4-1+deb11u5
debian 12	ruby3.1	=3.1.2-7 \|\| =3.1.2-7+deb12u1 \|\| =3.1.2-7+hurd.1 \|\| =3.1.2-8 \|\| =3.1.2-8.1~exp1 \|\| =3.1.2-8.3 \|\| =3.1.2-8.4 \|\| =3.1.2-8.5	-
debian 14	rubygems	>=0 <3.6.6-1	3.6.6-1
rubygems	uri	>=0 <0.11.3 \|\| >=0.12.0 <0.12.4 \|\| >=0.13.0 <0.13.2 \|\| >=1.0.0 <1.0.3	0.11.3, 0.12.4, 0.13.2, 1.0.3
rpm rhel8	ruby	<0:3.1.7-145.module+el8.10.0+23011+f9d508f8	0:3.1.7-145.module+el8.10.0+23011+f9d508f8

1-10 of 15

Aliases

1. CVE-2025-272212. NVD-2025-272213. OSV-DEBIAN-2025-272214. OSV-2025-272215. GCVE-2025-272216. SECURITY-TRACKER-CVE-2025-272217. lists.debian.org8. lists.debian.org

References

1. https://github.com/ruby/uri/pull/1542. https://github.com/ruby/uri/pull/1553. https://github.com/ruby/uri/pull/1564. https://github.com/ruby/uri/pull/1575. https://hackerone.com/reports/29576676. https://github.com/rubysec/ruby-advisory-db/blob/master/gems/uri/CVE-2025-27221.yml7. https://www.cve.org/CVERecord?id=CVE-2025-272218. https://www.ruby-lang.org/en/news/2025/02/26/security-advisories

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