RubyGems allows creation of users with arbitrary unverified emails

Description

RubyGems.org is the Ruby community gem host. A bug in password & email change confirmation code allowed an attacker to change their RubyGems.org account's email to an unowned email address. Having access to an account whose email has been changed could enable an attacker to save API keys for that account, and when a legitimate user attempts to create an account with their email (and has to reset password to gain access) and is granted access to other gems, the attacker would then be able to publish and yank versions of those gems. Commit number 90c9e6aac2d91518b479c51d48275c57de492d4d contains a patch for this issue.

Scores

EPSS (exploitation in 30 days)

1.0% · top 36% of all CVEs (6 Nov 2026)

CISA SSVC

Exploitation: none · Automatable: no · Technical impact: total

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.3.

Weakness

• CWE-287: Improper Authentication (opens in a new tab)All about CWE-287 and its CVEs

Affected products

• rubygems · rubygems.org

  • affected < 90c9e6aac2d91518b479c51d48275c57de492d4d

References (2)

• https://github.com/rubygems/rubygems.org/security/advisories/GHSA-8qpf-wf2p-25vg (opens in a new tab)x_refsource_CONFIRMx_transferred
• https://github.com/rubygems/rubygems.org/commit/90c9e6aac2d91518b479c51d48275c57de492d4d (opens in a new tab)x_refsource_MISCx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2022-36073](https://trackcve.app/badge/CVE-2022-36073.svg)](https://trackcve.app/cve/CVE-2022-36073)

Record last updated 23 Apr 2025, 17:14 UTC.