CVE-2022-36073

RubyGems allows creation of users with arbitrary unverified emails

HIGH
8.8
CVSS Score
Published: September 7, 2022 at 07:45 PM UTC
Updated: June 17, 2026 at 04:52 AM UTC
3 products affected across 1 vendorRubygemsBundlerRubygems.org

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Severity
HIGH8.8
Exploit prediction
EPSS 1%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 2022-08-31
Affected range stops below 2022-08-31, so it looks safe — our inference, not a vendor statement
v < 2022-08-31
Affected range stops below 2022-08-31, so it looks safe — our inference, not a vendor statement
v < 90c9e6aac2d91518b479c51d48275c57de492d4d

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-287

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