{"id":"CVE-2025-67221","aliases":["GHSA-hx9q-6w63-j58v","PYSEC-2026-107"],"url":"https://o3.security/vulnerability/CVE-2025-67221","summary":"orjson does not limit recursion for deeply nested JSON documents","details":"The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents.","published":"2026-01-22T00:00:00Z","modified":"2026-08-12T03:51:14.471991806Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"orjson","fixedVersion":"3.11.6"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/67xxx/CVE-2025-67221.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-67221"},{"type":"PACKAGE","url":"https://github.com/ijl/orjson"},{"type":"PACKAGE","url":"https://github.com/kpatsakis/orjson_vulnerability"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:14.471991806Z"}}