What’s Vulnerable › Vulnerabilities

CVE-2019-18409

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-10-24 · updated 2026-06-17
• Weakness: CWE-732

Description

The ruby_parser-legacy (aka legacy) gem 1.0.0 for Ruby allows local privilege escalation because of world-writable files. For example, if the brakeman gem (which has a legacy dependency) 4.5.0 through 4.7.0 is used, a local user can insert malicious code into the ruby_parser-legacy-1.0.0/lib/ruby_parser/legacy/ruby_parser.rb file.

Affected products

• Zenspider Ruby Parser-Legacy: 1.0.0

References

• https://github.com/zenspider/ruby_parser-legacy/issues/1
• https://github.com/zenspider/ruby_parser-legacy/issues/1

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