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Security Advisories

CVE-2026-33210

NVD

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

Severity

Unknown
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Summary

Ruby JSON has a format string injection vulnerability

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.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2026-33210
  • https://github.com/advisories/GHSA-3m6g-2423-7cp3
  • https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33210.json
  • https://github.com/ruby/json/security/advisories/GHSA-3m6g-2423-7cp3

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