CVE-2018-3722: hackerone merge-deep node module
Vulnerability summary
CVE-2018-3722 is a high (CVSS 8.8) vulnerability in hackerone merge-deep node module. EPSS estimates a 2.00% chance of exploitation in the next 30 days, higher than 80.5% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 07-06-2018PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
Description
merge-deep node module before 3.0.1 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.
CVSS metrics
3 scores · 2 sources · 2 versions- OSV · NpmEcosystem advisory · calculated8.8HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.00%
Chance of exploitation in the next 30 days
Percentile
81%
Versus all other CVEs
30-day change
-0.03 pp
From 2.04% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (hackerone.com)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Hackerone1 product
- merge-deep node moduleVersions before 3.0.1
Merge-deep_project1 product
- merge-deep< 3.0.1
Npm1 product
- merge-deep< 3.0.1
3 vendors · 3 products
References
5 links- github.com/jonschlinkert/merge-deep/commit/2c33634da7129a5aefcc262d2fec2e72224404e5X Refsource MISCPatchThird Party AdvisoryWEB