CVE-2025-67221

HIGH

IJL Orjson < 3.11.4 - Resource Allocation Without Limits

Title source: rule

Description

The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents.

Exploits (1)

nomisec WORKING POC 1 stars
by kpatsakis · poc
https://github.com/kpatsakis/CVE-2025-67221

References (2)

Scores

CVSS v3 7.5
EPSS 0.0003
EPSS Percentile 6.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-770
Status published
Products (2)
ijl/orjson < 3.11.4
pypi/orjson 0PyPI
Published Jan 22, 2026
Tracked Since Feb 18, 2026