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CVE-2026-33210

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CVE-2026-33210

Published: Mar 20, 2026

Modified: Mar 23, 2026

PUBLISHED

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.

VendorProductVersions

ruby

json

affected
>= 2.14.0, < 2.15.2.1
affected
>= 2.16.0, < 2.17.1.2
affected
>= 2.18.0, < 2.19.2

Weaknesses (CWE)

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