CVE-2018-3720
mediumpriority · track · 36EPSS 0.020 · 81 %ileEUUSEPSS · scored 2026-10-27
assign-deep node module before 0.4.7 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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–8.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
- assign-deep project assign-deep< 0.4.7nvdUScpe:2.3:a:assign-deep_project:assign-deep:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-xcvv-84j5-jw9hPrototype Pollution in assign-deep2018-07-26ghsa · osvUS
Versions of `assign-deep` before 0.4.7 are vulnerable to prototype pollution via merging functions. ## Recommendation Update to version 0.4.7 or later.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://github.com/jonschlinkert/assign-deep/commit/19953a8c089b0328c470acaaaf6accdfcb34da11cnnvd
- https://hackerone.com/reports/310707cnnvd
- https://github.com/jonschlinkert/assign-deep/commit/19953a8c089b0328c470acaaaf6accdfcb34da11enisa_euvd
- https://hackerone.com/reports/310707enisa_euvd
- https://github.com/jonschlinkert/assign-deep/commit/19953a8c089b0328c470acaaaf6accdfcb34da11PatchThird Party Advisorynvd
- https://hackerone.com/reports/310707ExploitThird Party Advisorynvd
Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.
Free scan