{"cve":"CVE-2025-67221","nvd":{"published":"2026-01-22T17:16:01.433","modified":"2026-06-17T09:57:31.260","status":"Analyzed","description":"The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-770"],"references":["https://github.com/ijl/orjson","https://github.com/kpatsakis/orjson_vulnerability"],"products":["ijl:orjson"],"source":"nvd","synced_at":"2026-10-19T22:21:16.563232421+00:00"},"epss":{"cve":"CVE-2025-67221","score":0.00633,"percentile":0.50361,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hx9q-6w63-j58v","url":"https://osv.dev/vulnerability/GHSA-hx9q-6w63-j58v","summary":"orjson does not limit recursion for deeply nested JSON documents","modified":"2026-09-10T03:50:33.258377926Z","packages":[{"ecosystem":"PyPI","name":"orjson","purl":"pkg:pypi/orjson","ranges":["<3.11.6"],"fixed":["3.11.6"]}]},{"id":"PYSEC-2026-107","url":"https://osv.dev/vulnerability/PYSEC-2026-107","summary":"","modified":"2026-06-10T17:02:27.794281728Z","packages":[{"ecosystem":"PyPI","name":"orjson","purl":"pkg:pypi/orjson","ranges":["<3.11.5"],"fixed":["3.11.5"]}]}],"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."]}