Description
The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents.
Published: 2026-01-22
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-hx9q-6w63-j58v orjson does not limit recursion for deeply nested JSON documents
History

Thu, 12 Feb 2026 15:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:ijl:orjson:*:*:*:*:*:python:*:*

Wed, 28 Jan 2026 00:15:00 +0000

Type Values Removed Values Added
Title orjson: orjson: Denial of Service due to unbounded recursion with deeply nested JSON documents
References

Fri, 23 Jan 2026 16:45:00 +0000

Type Values Removed Values Added
First Time appeared Ijl
Ijl orjson
Vendors & Products Ijl
Ijl orjson

Thu, 22 Jan 2026 23:00:00 +0000

Type Values Removed Values Added
Description The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents.
Weaknesses CWE-770
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-01-22T17:05:17.712Z

Reserved: 2025-12-08T00:00:00.000Z

Link: CVE-2025-67221

cve-icon Vulnrichment

Updated: 2026-01-22T17:04:49.459Z

cve-icon NVD

Status : Analyzed

Published: 2026-01-22T17:16:01.433

Modified: 2026-02-12T15:03:09.790

Link: CVE-2025-67221

cve-icon Redhat

Severity :

Publid Date: 2026-01-22T00:00:00Z

Links: CVE-2025-67221 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-01-23T16:32:09Z

Weaknesses