Prototype pollution in fun-map
Priority LOW 38CWE-1321Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Tampering
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-915.
Summary
fun-map through 3.3.1 is vulnerable to Prototype Pollution. The function assocInM could be tricked into adding or modifying properties of 'Object.prototype' using a '__proto__' payload.
Why it matters now
EPSS 0.01216 68th percentileScored 2026-11-07
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 |
|---|---|---|---|---|---|
| — | fun-map | All versions including 3.3.1 | — | No fix listed | CNA |
| — | fun-map (npm) | up to 3.3.1 | — | No fix listed | GHSA-p33m-7w7f-gmj8 |
- fun-map Vendor— Affected All versions including 3.3.1 Fixed in — No fix listed CNA
- fun-map (npm) Vendor— Affected up to 3.3.1 Fixed in — No fix listed GHSA-p33m-7w7f-gmj8
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:fun-map_project:fun-map:*:*:*:*:*:*:*:* | up to 3.3.1 | Vulnerable | Fun-map Project |
- cpe:2.3:a:fun-map_project:fun-map:*:*:*:*:*:*:*:* Versions up to 3.3.1 Vulnerable ·Fun-map Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2020-7644
- 2026-10-03 Alias added: GHSA-p33m-7w7f-gmj8
References
Sources
- CVE-2020-7644 · CVE Program
- CVE-2020-7644 · NVD
- FIRST EPSS
- GHSA-p33m-7w7f-gmj8 · GitHub Advisory Database · CC BY 4.0
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