InfraGuard
Sign in Try it now Buy now

Ruby 4.0 vulnerabilities

2 known CVEs affect the 4.0 line of Ruby.

1 KEV10.0 max CVSS

Fixed in

4.0.54.0.8
Check your versionruby -v

CVEs affecting 4.0

CVE Title CVSS Exploited EPSS Published
CVE-2026-97229 Integer Overflow or Wraparound in GitLab 10.0 KEV 69.3% 2026-10-13
CVE-2026-46727 An issue was discovered in Ruby 4 before 4.0.5. A race condition leading to a use-after-free in the pthread-ba... 8.1 — 2026-05-22

Track these versions on your own servers

InfraGuard collects installed software versions from every server and flags the ones with known vulnerabilities. Self-hosted — nothing leaves your network.

Try the live demo Buy now

Weekly exploited-vulnerability digest

The KEV additions that matter for self-hosted servers, once a week. No other mail.

Data: CVE List (CVE® Program), NVD, CISA KEV, FIRST EPSS (see EPSS at https://www.first.org/epss), endoflife.date. Software list: awesome-selfhosted (CC BY-SA 3.0).