CVE-2018-16492
CRITICAL9.8EPSS 2.5%Prototype Pollution in extend
Published: 2/7/2019Modified: 2/3/2026
Description
Versions of `extend` prior to 3.0.2 (for 3.x) and 2.0.2 (for 2.x) are vulnerable to Prototype Pollution. The `extend()` function allows attackers to modify the prototype of Object causing the addition or modification of an existing property that will exist on all objects. ## Recommendation If you're using `extend` 3.x upgrade to 3.0.2 or later. If you're using `extend` 2.x upgrade to 2.0.2 or later.
Affected packages (2)
- Debian/node-extendfrom 0, < 3.0.2-1
- npm/extend>= 3.0.0, < 3.0.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2018-16492
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2018-16492
- PATCHhttps://github.com/justmoon/node-extend
- WEBhttps://github.com/github/advisory-database/pull/6695
- WEBhttps://github.com/justmoon/node-extend/commit/0e68e71d93507fcc391e398bc84abd0666b28190
- WEBhttps://github.com/justmoon/node-extend/pull/48
- WEBhttps://hackerone.com/reports/381185