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
Affected Vendors & Products
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Advisories
| Source | ID | Title |
|---|---|---|
 Github GHSA |
GHSA-3m6g-2423-7cp3 | Ruby JSON has a format string injection vulnerability |
Fixes
Solution
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Workaround
No workaround given by the vendor.
References
History
Sat, 21 Mar 2026 05:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Ruby JSON has a format string injection vulnerability | |
| Weaknesses | CWE-134 | |
| References |
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| Metrics |
cvssV4_0
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Projects
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-03-20T22:57:08.758Z
Reserved: 2026-03-17T23:23:58.313Z
Link: CVE-2026-33210
Vulnrichment
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NVD
Status : Received
Published: 2026-03-20T23:16:46.010
Modified: 2026-03-20T23:16:46.010
Link: CVE-2026-33210
Redhat
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OpenCVE Enrichment
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Weaknesses