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CVE-2026-47240VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Affects Red Hat jrubySource GCVE Database

0

Mentioned vulnerabilities

Authoritative record:CVE-2026-47240· Medium 5.8

Not known to be exploited · CVSS 5.8 Medium.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 4.0 base score
5.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Ubuntu 26.10jrubypkg:deb/ubuntu/jruby?arch=source&distro=stonkingOther threatsAffected
  • =9.4.8.0+ds-3ubuntu1
  • =9.4.14.0+ds-1
Fixed in–
Ubuntu 26.10ruby3.3pkg:deb/ubuntu/ruby3.3?arch=source&distro=stonkingOther threatsAffected
  • =3.3.8-2ubuntu3
  • =3.3.8-2.2ubuntu4
Fixed in–
Ubuntu 26.04 LTSjrubypkg:deb/ubuntu/jruby?arch=source&distro=resoluteOther threatsAffected
  • =9.4.8.0+ds-3ubuntu1
Fixed in–
Ubuntu 26.04 LTSruby3.3pkg:deb/ubuntu/ruby3.3?arch=source&distro=resoluteOther threatsAffected
  • =3.3.8-2ubuntu2
  • =3.3.8-2ubuntu3
  • =3.3.8-2ubuntu3.1
Fixed in–
Ubuntu 25.10jrubypkg:deb/ubuntu/jruby?arch=source&distro=questingOther threatsAffected
  • =9.4.8.0+ds-2ubuntu1
  • =9.4.8.0+ds-3ubuntu1
Fixed in–
Ubuntu 25.10ruby3.3pkg:deb/ubuntu/ruby3.3?arch=source&distro=questingOther threatsAffected
  • 3.3.7-1ubuntu2 – 3.3.8-2ubuntu2.1
4 affected builds
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

This update includes the following RPMs: ruby3.3: * ruby3.3-3.3.10-23.4.hum1 (aarch64, x86_64) * ruby3.3-bundled-gems-3.3.10-23.4.hum1 (aarch64, x86_64) * ruby3.3-default-gems-3.3.10-23.4.hum1 (noarch) * ruby3.3-devel-3.3.10-23.4.hum1 (aarch64, x86_64) * ruby3.3-doc-3.3.10-23.4.hum1 (noarch) * ruby3.3-libs-3.3.10-23.4.hum1 (aarch64, x86_64) * rubygem3.3-bigdecimal-3.1.5-23.4.hum1 (aarch64, x86_64) * rubygem3.3-bundler-2.5.22-23.4.hum1 (noarch) * rubygem3.3-devel-3.5.22-23.4.hum1 (noarch) * rubygem3.3-io-console-0.7.1-23.4.hum1 (aarch64, x86_64) * rubygem3.3-irb-1.13.1-23.4.hum1 (noarch) * rubygem3.3-json-2.7.2-23.4.hum1 (aarch64, x86_64) * rubygem3.3-minitest-5.20.0-23.4.hum1 (noarch) * rubygem3.3-power_assert-2.0.3-23.4.hum1 (noarch) * rubygem3.3-psych-5.1.2-23.4.hum1 (aarch64, x86_64) * rubygem3.3-racc-1.7.3-23.4.hum1 (aarch64, x86_64) * rubygem3.3-rake-13.1.0-23.4.hum1 (noarch) * rubygem3.3-rbs-3.4.0-23.4.hum1 (aarch64, x86_64) * rubygem3.3-rdoc-6.6.3.1-23.4.hum1 (noarch) * rubygem3.3-rexml-3.4.4-23.4.hum1 (noarch) * rubygem3.3-rss-0.3.1-23.4.hum1 (noarch) * rubygem3.3-rubygems-3.5.22-23.4.hum1 (noarch) * rubygem3.3-test-unit-3.6.1-23.4.hum1 (noarch) * rubygem3.3-typeprof-0.21.9-23.4.hum1 (noarch) * ruby3.3-3.3.10-23.4.hum1.src (src) Security Fix(es): ruby3.3: * CVE-2026-47240 * CVE-2026-47241 * CVE-2026-47242

References

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