Prototype pollution in json-pointer
Priority MEDIUM 46CWE-843Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-843 and the CVSS impact.
Summary
This affects all versions of package json-pointer. A type confusion vulnerability can lead to a bypass of CVE-2020-7709 when the pointer components are arrays.
Why it matters now
EPSS 0.01873 79th percentileScored 2026-11-07
Fix Fixed json-pointer (npm): 0.6.2Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | json-pointer | all versions | — | No fix listed | CNA |
| — | json-pointer (npm) | before 0.6.2 | 0.6.2 | Patch available | GHSA-v5vg-g7rq-363w |
- json-pointer Vendor— Affected all versions Fixed in — No fix listed CNA
- json-pointer (npm) Vendor— Affected before 0.6.2 Fixed in 0.6.2 Patch available GHSA-v5vg-g7rq-363w
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:manuelstofer:json-pointer:*:*:*:*:*:node.js:*:* | before 0.6.2 | Vulnerable | Manuelstofer |
- cpe:2.3:a:manuelstofer:json-pointer:*:*:*:*:*:node.js:*:* Versions before 0.6.2 Vulnerable ·Manuelstofer
Remediation
- Fix · GHSA-v5vg-g7rq-363w json-pointer (npm) Fixed in 0.6.2 Advisory →
Red Hat 1 advisory
- RHSA-2022:4880 Released 2022-06-02 · Red Hat rating ModerateACS 3.70 enhancement and security update
- RHACS 3.70 for RHEL 8 advanced-cluster-security/rhacs-collector-rhel8, advanced-cluster-security/rhacs-collector-slim-rhel8, advanced-cluster-security/rhacs-docs-rhel8 +3
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| RHACS 3.70 for RHEL 8 | Fixed | RHSA-2022:4880 |
Not affected: 1 product
- RHACS 3.70 for RHEL 8
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23820
- 2026-10-03 Alias added: GHSA-v5vg-g7rq-363w
References
Advisory 2
More Manuelstofer Json-pointer vulnerabilities
- TI-2020-06229 Prototype pollution in json-pointer CVSS 3.1HIGH 7.2
Sources
- CVE-2021-23820 · CVE Program
- CVE-2021-23820 · NVD
- FIRST EPSS
- GHSA-v5vg-g7rq-363w · GitHub Advisory Database · CC BY 4.0
- CVE-2021-23820 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences