Description
Ruby JSON is a JSON implementation for Ruby. From version 2.14.0 to before versions 2.15.2.1, 2.17.1.2, and 2.19.2, a format string injection vulnerability can lead to denial of service attacks or information disclosure, when the allow_duplicate_key: false parsing option is used to parse user supplied documents. This issue has been patched in versions 2.15.2.1, 2.17.1.2, and 2.19.2.
Metrics
CVSS 3.1 9.1/10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| ruby | json | >= 2.14.0, < 2.15.2.1; >= 2.16.0, < 2.17.1.2; >= 2.18.0, < 2.19.2 |
| Red Hat | Red Hat Enterprise Linux 10 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Hardened Images | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Logging Subsystem for Red Hat OpenShift | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat 3scale API Management Platform 2 | — |
| Red Hat | Red Hat AMQ Clients | — |
| Red Hat | Red Hat Enterprise Linux 10 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 8 | — |
| Red Hat | Red Hat Enterprise Linux 9 | — |
| Red Hat | Red Hat Enterprise Linux AI (RHEL AI) 3 | — |
References
- https://github.com/ruby/json/security/advisories/GHSA-3m6g-2423-7cp3Mitigation, Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:20596
- https://access.redhat.com/errata/RHSA-2026:20606
- https://access.redhat.com/errata/RHSA-2026:57565
- https://access.redhat.com/security/cve/CVE-2026-33210
- https://bugzilla.redhat.com/show_bug.cgi?id=2449871
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33210.json
Timeline
- Published
- Mar 20, 2026
- Last modified
- Aug 21, 2026
- NVD status
- Modified