Read the docs
TI-2009-03911 Aliases CVE-2009-4123GHSA-xgv7-pqqh-h2w9

The jruby-openssl gem before 0.6 for JRuby mishandles SSL certificate validation.

Priority LOW 34CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-295.

Summary

The jruby-openssl gem before 0.6 for JRuby mishandles SSL certificate validation.

Why it matters now

EPSS 0.006 48th percentileScored 2026-11-07
Fix Fixed jruby-openssl (RubyGems): 0.6

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—jruby-openssl (RubyGems)before 0.60.6Patch availableGHSA-xgv7-pqqh-h2w9
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • jruby-openssl (RubyGems) Vendor— Affected before 0.6 Fixed in 0.6 Patch available GHSA-xgv7-pqqh-h2w9

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:jruby:jruby-openssl:*:*:*:*:*:*:*:*before 0.6Vulnerablejruby
  • cpe:2.3:a:jruby:jruby-openssl:*:*:*:*:*:*:*:* Versions before 0.6 Vulnerable ·jruby

Remediation

  • Fix · GHSA-xgv7-pqqh-h2w9 jruby-openssl (RubyGems) Fixed in 0.6 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2009-4123
  2. 2026-10-03 Alias added: GHSA-xgv7-pqqh-h2w9

References

Advisory 4

Other 2

  • TI-2025-29269 JRuby-OpenSSL has hostname verification disabled by default CVSS 4.0MEDIUM 5.7

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences