CVE-2026-33210CRITICAL 9.1EPSS p41.4%
CVE-2026-33210CVE-2026-33210
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.
Scoring
| CVSS 3.1 | 9.1 (CRITICAL) |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
| EPSS | 0.55% probability of exploitation · percentile 41.4% · 2026-06-19T12:03:05Z |
| Published | 2026-03-20 |
| Last modified | 2026-03-27 |
Underlying weaknesses· 1
References
1
| Type | Target | Confidence | Tier |
|---|---|---|---|
| Weakness | Use of Externally-Controlled Format Stringcwe-134 | 0% | live |
Related by meaning· 6
Nearest entities by semantic similarity across the cs-graph corpus.