CVE-2019-13589 — Vulnerability in paranoid2 — CVE Details
CRITICAL
paranoid2 gem Code backdoor
Published July 16, 2019Updated March 13, 2026Source: osv
Summary
The paranoid2 gem 1.1.6 for Ruby, as distributed on RubyGems.org, included a code-execution backdoor inserted by a third party. The current version, without this backdoor, is 1.1.5.
Advisory Timeline
- First published July 16, 2019 (2645 days ago).
- Last revised March 13, 2026 — 2433 days after initial publication.
Affected Packages (1)
Affects 1 ecosystem: rubygems (1).
| Package | Ecosystem | Affected | Fixed In |
|---|---|---|---|
| paranoid2 | rubygems | 1.1.6 | No fix available |
Vulnerability Classification
Common Weakness Enumeration (CWE) identifiers for this vulnerability type.
- CWE-829
CVSS Score Breakdown
What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://nvd.nist.gov/vuln/detail/CVE-2019-13589ADVISORY
- https://github.com/rubygems/rubygems.org/issues/2051WEB
- https://github.com/anjlab/paranoid2PACKAGE
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/paranoid2/CVE-2019-13589.ymlWEB
- https://rubygems.org/gems/paranoid2/versionsWEB
- https://snyk.io/vuln/SNYK-RUBY-PARANOID2-451600WEB
- https://www.securityfocus.com/bid/109281WEB
Frequently Asked Questions
- What is CVE-2019-13589?
- paranoid2 gem Code backdoor This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
- How do I check if my project is affected by CVE-2019-13589?
- CVE-2019-13589 affects paranoid2. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2019-13589 and 200,000+ other known vulnerabilities.
Severity & Exploitability
CVSS Score
9.8
Exploitation is straightforward and causes maximum impact. Patch immediately.
Also Known As
GHSA-4g4c-8gqh-m4vm
Related CVEs
- CVE-2026-55107CRITICAL
kobako Sandbox Escape: guest eval reaches host RCE via method_missing → public_send (any bound Service)
- CVE-2026-77602CRITICAL
OpenC3 COSMOS: Authenticated remote code execution via the user-writable config overlay (table definitions, cmd/tlm definitions, and script suites)
Check if you're affected
Scan your dependencies to see if this vulnerability affects your projects.
Scan Your Dependencies