THREATOPS

THREAT OPS › Threat News › [NVD] CVE-2026-33210 (CRITICAL 9.1) — 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

[NVD] CVE-2026-33210 (CRITICAL 9.1) — 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

lownvdPublished 2026-03-20

CVE-2026-33210 CVSS: 9.1 CRITICAL Published: 2026-03-20T23:16:46.010

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 b

Indicators of compromise

CVE-2026-33210cve
2.15.2.1ipv4
2.17.1.2ipv4

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-33210