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ruby/json: Ruby JSON: Denial of Service or Information Disclosure via format string injection

🗓️ 26 May 2026 07:42:21Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 11 Views

Ruby JSON injection enables DoS or information disclosure when parsing with duplicate keys disallowed.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.8aarch64ruby0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-0:4.0.3-32.module+el9.8.0+24280+122d8796.aarch64.rpm
Red Hat Enterprise Linux9.8i686ruby0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-0:4.0.3-32.module+el9.8.0+24280+122d8796.i686.rpm
Red Hat Enterprise Linux9.8ppc64leruby0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-0:4.0.3-32.module+el9.8.0+24280+122d8796.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xruby0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-0:4.0.3-32.module+el9.8.0+24280+122d8796.s390x.rpm
Red Hat Enterprise Linux9.8x86_64ruby0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-0:4.0.3-32.module+el9.8.0+24280+122d8796.x86_64.rpm
Red Hat Enterprise Linux9.8aarch64ruby-bundled-gems0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-bundled-gems-0:4.0.3-32.module+el9.8.0+24280+122d8796.aarch64.rpm
Red Hat Enterprise Linux9.8i686ruby-bundled-gems0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-bundled-gems-0:4.0.3-32.module+el9.8.0+24280+122d8796.i686.rpm
Red Hat Enterprise Linux9.8ppc64leruby-bundled-gems0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-bundled-gems-0:4.0.3-32.module+el9.8.0+24280+122d8796.ppc64le.rpm
Red Hat Enterprise Linux9.8s390xruby-bundled-gems0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-bundled-gems-0:4.0.3-32.module+el9.8.0+24280+122d8796.s390x.rpm
Red Hat Enterprise Linux9.8x86_64ruby-bundled-gems0:4.0.3-32.module+el9.8.0+24280+122d8796ruby-bundled-gems-0:4.0.3-32.module+el9.8.0+24280+122d8796.x86_64.rpm
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09 Jul 2026 17:54Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.19.1
CVSS 48.3
EPSS0.00838
SSVC
11