CVE-2018-3719
mixin-deep node module before 1.3.1 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability, which allows a malicious…
- 8.8HighCVSS base score
- 2.1%Exploitation in 30 daysEPSS · top 18% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
mixin-deep node module before 1.3.1 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.
Timeline
ID reserved
By hackerone
- 5 months later
· 5 months later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 2.1% · top 18% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Affected products
HackerOne · mixin-deep node module
- affected Versions before 1.3.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- npmmixin-deepGHSA-3mpr-hq3p-49h9 (opens in a new tab)
References
2
- https://github.com/jonschlinkert/mixin-deep/commit/578b0bc5e74e14de9ef4975f504dc698796bdf9c (opens in a new tab)x_refsource_MISCx_transferred
- https://hackerone.com/reports/311236 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-0215 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-3mpr-hq3p-49h9 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-3719)Record last updated .