Vulnerability Details : CVE-2021-26707
The merge-deep library before 3.0.3 for Node.js can be tricked into overwriting properties of Object.prototype or adding new properties to it. These properties are then inherited by every object in the program, thus facilitating prototype-pollution attacks against applications using this library.
Exploit prediction scoring system (EPSS) score for CVE-2021-26707
Probability of exploitation activity in the next 30 days: 0.63%
Percentile, the proportion of vulnerabilities that are scored at or less: ~ 78 % EPSS Score History EPSS FAQ
CVSS scores for CVE-2021-26707
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source |
|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-26707
-
The product receives input from an upstream component that specifies attributes that are to be initialized or updated in an object, but it does not properly control modifications of attributes of the object prototype.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-26707
-
https://security.netapp.com/advisory/ntap-20210716-0008/
CVE-2021-26707 Node.js Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://github.com/jonschlinkert/merge-deep/commit/11e5dd56de8a6aed0b1ed022089dbce6968d82a5
add isValidKey function to ensure only valid keys are merged · jonschlinkert/merge-deep@11e5dd5 · GitHubPatch;Third Party Advisory
-
https://www.npmjs.com/package/merge-deep
merge-deep - npmProduct;Third Party Advisory
-
https://securitylab.github.com/advisories/GHSL-2020-160-merge-deep/
GHSL-2020-160: Prototype pollution in Merge-deep | GitHub Security LabThird Party Advisory
Products affected by CVE-2021-26707
- cpe:2.3:a:netapp:e-series_performance_analyzer:-:*:*:*:*:*:*:*
- cpe:2.3:a:merge-deep_project:merge-deep:*:*:*:*:*:node.js:*:*