Prototype pollution in open-graph
Priority MEDIUM 44CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-915.
Summary
This affects the package open-graph before 0.2.6. The function parse could be tricked into adding or modifying properties of Object.prototype using a __proto__ or constructor payload.
Why it matters now
EPSS 0.01113 66th percentileScored 2026-11-07
Fix Fixed open-graph: 0.2.6open-graph (npm): 0.2.6
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 |
|---|---|---|---|---|---|
| — | open-graph | before 0.2.6 | 0.2.6 | Patch available | CNA |
| — | open-graph (npm) | before 0.2.6 | 0.2.6 | Patch available | GHSA-g452-6rfc-vrvx |
- open-graph Vendor— Affected before 0.2.6 Fixed in 0.2.6 Patch available CNA
- open-graph (npm) Vendor— Affected before 0.2.6 Fixed in 0.2.6 Patch available GHSA-g452-6rfc-vrvx
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:open-graph_project:open-graph:*:*:*:*:*:node.js:*:* | before 0.2.6 | Vulnerable | Open-graph Project |
- cpe:2.3:a:open-graph_project:open-graph:*:*:*:*:*:node.js:*:* Versions before 0.2.6 Vulnerable ·Open-graph Project
Remediation
- Fix · CNA open-graph Fixed in 0.2.6
- Fix · GHSA-g452-6rfc-vrvx open-graph (npm) Fixed in 0.2.6 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23419
- 2026-10-03 Alias added: GHSA-g452-6rfc-vrvx
References
Sources
- CVE-2021-23419 · CVE Program
- CVE-2021-23419 · NVD
- FIRST EPSS
- GHSA-g452-6rfc-vrvx · GitHub Advisory Database · CC BY 4.0
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