{"cve":"CVE-2013-0269","nvd":{"published":"2013-02-13T01:55:05.107","modified":"2026-06-16T23:49:05.640","status":"Modified","description":"The JSON gem before 1.5.5, 1.6.x before 1.6.8, and 1.7.x before 1.7.7 for Ruby allows remote attackers to cause a denial of service (resource consumption) or bypass the mass assignment protection mechanism via a crafted JSON document that triggers the creation of arbitrary Ruby symbols or certain internal objects, as demonstrated by conducting a SQL injection attack against Ruby on Rails, aka \"Unsafe Object Creation Vulnerability.\"","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-20"],"references":["http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html","http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00001.html","http://lists.opensuse.org/opensuse-security-announce/2013-04/msg00015.html","http://lists.opensuse.org/opensuse-updates/2013-04/msg00034.html","http://rhn.redhat.com/errata/RHSA-2013-0686.html"],"products":["rubygems:json_gem"],"source":"nvd","synced_at":"2026-10-19T20:27:27.940201468+00:00"},"epss":{"cve":"CVE-2013-0269","score":0.13911,"percentile":0.96539,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-x457-cw4h-hq5f","url":"https://osv.dev/vulnerability/GHSA-x457-cw4h-hq5f","summary":"JSON gem has Improper Input Validation vulnerability","modified":"2024-12-05T05:39:59.197079Z","packages":[{"ecosystem":"RubyGems","name":"json","purl":"pkg:gem/json","ranges":["<1.5.5"],"fixed":["1.5.5"]},{"ecosystem":"RubyGems","name":"json","purl":"pkg:gem/json","ranges":[">=1.6.0 <1.6.8"],"fixed":["1.6.8"]},{"ecosystem":"RubyGems","name":"json","purl":"pkg:gem/json","ranges":[">=1.7.0 <1.7.7"],"fixed":["1.7.7"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}