CVE-2019-13589
paranoid2 gem Code backdoor
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2019-13589- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 7.5 High
AV:N/AC:L/Au:N/C:P/I:P/A:P - Weakness
- CWE-829
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2019-13589- Updated
- 2026-11-02
EUVDEUVD-2019-0575 No score
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.
- Record
EUVD-2019-0575- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-4g4c-8gqh-m4vm
paranoid2 gem Code backdoor
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.
- Record
GHSA-4g4c-8gqh-m4vm- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-829
- Updated
- 2026-11-02
OSVGHSA-4g4c-8gqh-m4vm
paranoid2 gem Code backdoor
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.
- Record
GHSA-4g4c-8gqh-m4vm- CVSS 3.0
- 9.8 Critical
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-829
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-13589 is a critical vulnerability (CVSS 9.8) in Anjlab Paranoid2, published July 14, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.35%, the 91st percentile. No source names a fixed version.
References
github.com/rubygems/rubygems.org/issues/2051
rubygems.org/gems/paranoid2/versions
securityfocus.com/bid/109281
snyk.io/vuln/SNYK-RUBY-PARANOID2-451600
nvd.nist.gov/vuln/detail/CVE-2019-13589