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TI-2025-20078 Aliases CVE-2025-27221GHSA-22h5-pq3x-2gf2

Information disclosure in ruby URI

Priority LOW 25CWE-212Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
Partial Red Hat: 4 fixed, 1 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-200.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00511 43rd percentileScored 2026-11-07
Fix Partial URI (ruby-lang): 0.11.3, 0.12.4, 0.13.2 +1uri (RubyGems): 0.11.3, 0.12.4, 0.13.2 +1Red Hat: 5 advisoriesRed Hat: 4 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
rubyURIbefore 0.11.3; 0.12.0 to before 0.12.4; 0.13.0 to before 0.13.2; 1.0.0 to before 1.0.30.11.3, 0.12.4, 0.13.2, 1.0.3Patch availableCNA
—uri (RubyGems)before 0.11.30.11.3Patch availableGHSA-22h5-pq3x-2gf2
—uri (RubyGems)0.12.0 to before 0.12.40.12.4Patch availableGHSA-22h5-pq3x-2gf2
—uri (RubyGems)0.13.0 to before 0.13.20.13.2Patch availableGHSA-22h5-pq3x-2gf2
—uri (RubyGems)1.0.0 to before 1.0.31.0.3Patch availableGHSA-22h5-pq3x-2gf2
  • URI Vendorruby Affected before 0.11.3; 0.12.0 to before 0.12.4; 0.13.0 to before 0.13.2; 1.0.0 to before 1.0.3 Fixed in 0.11.3, 0.12.4, 0.13.2, 1.0.3 Patch available CNA
  • uri (RubyGems) Vendor— Affected before 0.11.3 Fixed in 0.11.3 Patch available GHSA-22h5-pq3x-2gf2
  • uri (RubyGems) Vendor— Affected 0.12.0 to before 0.12.4 Fixed in 0.12.4 Patch available GHSA-22h5-pq3x-2gf2
  • uri (RubyGems) Vendor— Affected 0.13.0 to before 0.13.2 Fixed in 0.13.2 Patch available GHSA-22h5-pq3x-2gf2
  • uri (RubyGems) Vendor— Affected 1.0.0 to before 1.0.3 Fixed in 1.0.3 Patch available GHSA-22h5-pq3x-2gf2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:ruby-lang:uri:*:*:*:*:*:ruby:*:*before 0.11.3; 0.12.0 to before 0.12.4; 0.13.0 to before 0.13.2; 1.0.0 to before 1.0.3Vulnerableruby
  • cpe:2.3:a:ruby-lang:uri:*:*:*:*:*:ruby:*:* Versions before 0.11.3; 0.12.0 to before 0.12.4; 0.13.0 to before 0.13.2; 1.0.0 to before 1.0.3 Vulnerable ·ruby

Remediation

  • Fix · CNA URI (ruby-lang) Fixed in 0.11.3, 0.12.4, 0.13.2, 1.0.3
  • Fix · GHSA-22h5-pq3x-2gf2 uri (RubyGems) Fixed in 0.11.3 Advisory →
  • Fix · GHSA-22h5-pq3x-2gf2 uri (RubyGems) Fixed in 0.12.4 Advisory →
  • Fix · GHSA-22h5-pq3x-2gf2 uri (RubyGems) Fixed in 0.13.2 Advisory →
  • Fix · GHSA-22h5-pq3x-2gf2 uri (RubyGems) Fixed in 1.0.3 Advisory →

Red Hat 5 advisories

  • RHSA-2025:10217 Released 2025-07-02 · Red Hat rating Moderate
    ruby:3.3 security update
    • Red Hat Enterprise Linux AppStream (v. 8) ruby-3.3.8-4.module+el8.10.0+23024+a87ba659.aarch64::ruby:3.3, ruby-3.3.8-4.module+el8.10.0+23024+a87ba659.i686::ruby:3.3, ruby-3.3.8-4.module+el8.10.0+23024+a87ba659.ppc64le::ruby:3.3 +47
  • RHSA-2025:8131 Released 2025-05-26 · Red Hat rating Moderate
    ruby security update
    • Red Hat Enterprise Linux AppStream (v. 10) ruby-3.3.8-10.el10_0, ruby-bundled-gems-3.3.8-10.el10_0, ruby-default-gems-3.3.8-10.el10_0 +20
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) ruby-doc-3.3.8-10.el10_0
  • RHSA-2025:4493 Released 2025-05-06 · Red Hat rating Moderate
    ruby:3.3 security update
    • Red Hat Enterprise Linux AppStream (v. 9) ruby-3.3.8-4.module+el9.5.0+23030+26c9b8e1.aarch64::ruby:3.3, ruby-3.3.8-4.module+el9.5.0+23030+26c9b8e1.i686::ruby:3.3, ruby-3.3.8-4.module+el9.5.0+23030+26c9b8e1.ppc64le::ruby:3.3 +47
Show 2 more Red Hat advisories
  • RHSA-2025:4488 Released 2025-05-06 · Red Hat rating Moderate
    ruby:3.1 security update
    • Red Hat Enterprise Linux AppStream (v. 9) ruby-3.1.7-146.module+el9.5.0+23003+a4c328ce.aarch64::ruby:3.1, ruby-3.1.7-146.module+el9.5.0+23003+a4c328ce.i686::ruby:3.1, ruby-3.1.7-146.module+el9.5.0+23003+a4c328ce.ppc64le::ruby:3.1 +47
  • RHSA-2025:4063 Released 2025-04-23 · Red Hat rating Moderate
    ruby:3.1 security update
    • Red Hat Enterprise Linux AppStream (v. 8) ruby-3.1.7-145.module+el8.10.0+23011+f9d508f8.aarch64::ruby:3.1, ruby-3.1.7-145.module+el8.10.0+23011+f9d508f8.i686::ruby:3.1, ruby-3.1.7-145.module+el8.10.0+23011+f9d508f8.ppc64le::ruby:3.1 +47

Vendor assessments

Red Hat

Red Hat rating: Low. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet: Fix deferred
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2025:8131
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2025:10217, RHSA-2025:4063
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2025:4488, RHSA-2025:4493
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2025:8131

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-27221
  2. 2026-10-03 Alias added: GHSA-22h5-pq3x-2gf2

References

Advisory 2

Other 10

  • TI-2023-13266 A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. CVSS 3.1MEDIUM 5.3
  • TI-2023-18437 A ReDoS issue was discovered in the URI component before 0.12.2 for Ruby. CVSS 3.1MEDIUM 5.3
  • TI-2025-38040 URI Credential Leakage Bypass over CVE-2025-27221 CVSS 4.0LOW 2.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences