orjson.loads in orjson before 3.9.15 does not limit recursion for deeply nested JSON documents.
Priority MEDIUM 41CWE-674Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-674.
Summary
orjson.loads in orjson before 3.9.15 does not limit recursion for deeply nested JSON documents.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01187 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed orjson (PyPI): 3.9.15
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | orjson (PyPI) | before 3.9.15 | 3.9.15 | Patch available | GHSA-pwr2-4v36-6qpr |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- orjson (PyPI) Vendor— Affected before 3.9.15 Fixed in 3.9.15 Patch available GHSA-pwr2-4v36-6qpr
Remediation
- Fix · GHSA-pwr2-4v36-6qpr orjson (PyPI) Fixed in 3.9.15 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2024-27454
- 2026-10-03 Alias added: GHSA-pwr2-4v36-6qpr
References
More Ijl Orjson vulnerabilities
- TI-2025-41161 The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents. CVSS 3.1HIGH 7.5
Sources
- CVE-2024-27454 · CVE Program
- CVE-2024-27454 · NVD
- FIRST EPSS
- GHSA-pwr2-4v36-6qpr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences