CVSS 3.0
9.8 criticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2018-3750
Critical (9.8) in deep extend project deep extend. EPSS 2.1% chance of exploitation in the next 30 days. Fixed in deep-extend 0.5.1.
The utilities function in all versions <= 0.5.0 of the deep-extend node module can be tricked into modifying the prototype of Object when the attacker can control part of the structure passed to this function. This can let an attacker add or modify existing properties that will exist on all objects.
Severity
- EPSS
- 2.1% chance of exploitation in the next 30 days; higher than 82% of CVEs (scores of 2026-10-31)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- deep_extend_project:deep_extend
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-hr2v-3952-633q | npm | deep-extend | <0.5.1 | 0.5.1 |