CVE-2018-3722

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.

Affected

HackerOne · merge-deep node module

CVSS v3.0 NVD

8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0 NVD

6.5 MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P

EPSS

2.00% chance of exploitation in the next 30 days, 81st percentile

Published

2018-06-07

Updated

2024-09-17

Proof-of-concept exploits (2)

• https://hackerone.com/reports/310708
• ossf-cve-benchmark/CVE-2018-37220★ · 2020-12-01

Security advisories

• jonschlinkert/merge-deep/commit/2c33634da7129a5aefcc262d2fec2e72224404e5
• advisories/GHSA-9g9w-hmvj-5h57

References

• CVE Record
• NVD entry