CVSS 3.0
8.8 highCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2018-3722
merge-deep node module before 3.0.1 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability, which allows a malicious user to modify the prototype of "Object" via __proto__, causing the addition or modification of an existing property that will exist on all objects.
Severity
- EPSS
- 2.0% chance of exploitation in the next 30 days; higher than 80% of CVEs (scores of 2026-10-31)
- CWE
- CWE-471
- Published
- Modified
- Record from
- the NVD, synced
Affected
- merge-deep_project:merge-deep
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-9g9w-hmvj-5h57 | npm | merge-deep | <3.0.1 | 3.0.1 |