Prototype pollution in config-handler
Priority MEDIUM 44CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.
Summary
All versions of package config-handler are vulnerable to Prototype Pollution when loading config files.
Why it matters now
EPSS 0.01193 68th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | config-handler | all versions | — | No fix listed | CNA |
| — | config-handler (npm) | up to 2.0.3 | — | No fix listed | GHSA-2w3f-9w3q-qw77 |
- config-handler Vendor— Affected all versions Fixed in — No fix listed CNA
- config-handler (npm) Vendor— Affected up to 2.0.3 Fixed in — No fix listed GHSA-2w3f-9w3q-qw77
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:config-handler_project:config-handler:1.0.0:*:*:*:*:*:*:* | 1.0.0 | Vulnerable | Config-handler Project |
- cpe:2.3:a:config-handler_project:config-handler:1.0.0:*:*:*:*:*:*:* Versions 1.0.0 Vulnerable ·Config-handler Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23448
- 2026-10-03 Alias added: GHSA-2w3f-9w3q-qw77
References
Sources
- CVE-2021-23448 · CVE Program
- CVE-2021-23448 · NVD
- FIRST EPSS
- GHSA-2w3f-9w3q-qw77 · GitHub Advisory Database · CC BY 4.0
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