Prototype Pollution in vincit/objection.js
Priority MEDIUM 45CWE-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
objection.js is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
Why it matters now
EPSS 0.0147 73rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed vincit/objection.js (vincit): 2.2.16objection (npm): 2.2.16
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 |
|---|---|---|---|---|---|
| vincit | vincit/objection.js | before 2.2.16 | 2.2.16 | Patch available | CNA |
| — | objection (npm) | before 2.2.16 | 2.2.16 | Patch available | GHSA-r659-8xfp-j327 |
- vincit/objection.js Vendorvincit Affected before 2.2.16 Fixed in 2.2.16 Patch available CNA
- objection (npm) Vendor— Affected before 2.2.16 Fixed in 2.2.16 Patch available GHSA-r659-8xfp-j327
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:objection_project:objection:*:*:*:*:*:node.js:*:* | before 2.2.16 | Vulnerable | Objection Project |
- cpe:2.3:a:objection_project:objection:*:*:*:*:*:node.js:*:* Versions before 2.2.16 Vulnerable ·Objection Project
Remediation
- Fix · CNA vincit/objection.js (vincit) Fixed in 2.2.16
- Fix · GHSA-r659-8xfp-j327 objection (npm) Fixed in 2.2.16 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3766
- 2026-10-03 Alias added: GHSA-r659-8xfp-j327
References
Sources
- CVE-2021-3766 · CVE Program
- CVE-2021-3766 · NVD
- FIRST EPSS
- GHSA-r659-8xfp-j327 · GitHub Advisory Database · CC BY 4.0
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