CVE-2025-67221
2 advisories.
PyPI/orjson CVE-2025-67221: high
orjson does not limit recursion for deeply nested JSON documents
Action: Upgrade orjson to 3.11.6 or later.
pip install orjson==3.11.6Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.11.6 | - |
Fixed versions
| 3.11.6 |
Sources
- osv: GHSA-hx9q-6w63-j58v
- https://nvd.nist.gov/vuln/detail/CVE-2025-67221
- https://github.com/ijl/orjson/issues/620
- https://github.com/kpatsakis/CVE-2025-67221/issues/1
- https://github.com/ijl/orjson/commit/62bb185b70785ded49c79c26f8c9781f1e6fe370
- https://github.com/ijl/orjson
- https://github.com/kpatsakis/orjson_vulnerability
- https://github.com/pypa/advisory-database/tree/main/vulns/orjson/PYSEC-2026-107.yaml
CVE-2025-67221 · published · modified · JSON
PyPI/orjson CVE-2025-67221: high 7.5
The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents.
Action: Upgrade orjson to 3.11.5 or later.
pip install orjson==3.11.5Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 3.11.5 | - |
Fixed versions
| 3.11.5 |
Sources
- osv: PYSEC-2026-107
- https://github.com/ijl/orjson
- https://github.com/kpatsakis/orjson_vulnerability
- https://github.com/advisories/GHSA-hx9q-6w63-j58v
CVE-2025-67221 · published · modified · JSON