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	Component	Affected version	Patched versions
debian 14	ruby3.3	>=0 <3.3.7-2	3.3.7-2
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 12	rubygems	=3.3.15-2 \|\| >=0 <3.3.15-2+deb12u1	3.3.15-2+deb12u1
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 rhel9	ruby-31	-	-
rpm rhel10	ruby	<0:3.3.8-10.el10_0	0:3.3.8-10.el10_0
rpm rhel9	ruby-33	-	-

1-10 of 13

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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