Vulnerability DatabaseCVE-2020-8203
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CVE-2020-8203
Published:July 15, 2020
Updated:April 09, 2026
Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20.
Affected Packages
lodash (NPM):
Affected version(s) >=3.7.0 <4.17.19
Fix Suggestion:
Update to version 4.17.19
lodash-es (NPM):
Affected version(s) >=3.7.0 <4.17.20
Fix Suggestion:
Update to version 4.17.20
Related Resources (19)
https://www.oracle.com/security-alerts/cpuapr2022.html
https://security.netapp.com/advisory/ntap-20200724-0006
https://hackerone.com/reports/864701
https://github.com/lodash/lodash
https://hackerone.com/reports/712065
https://github.com/rubysec/ruby-advisory-db/blob/master/gems/lodash-rails/CVE-2020-8203.yml
https://www.oracle.com/security-alerts/cpuApr2021.html
https://github.com/lodash/lodash/wiki/Changelog#v41719
https://security-tracker.debian.org/tracker/CVE-2020-8203
https://github.com/lodash/lodash/issues/4874
https://github.com/github/advisory-database/pull/2884
https://security.netapp.com/advisory/ntap-20200724-0006/
https://web.archive.org/web/20210914001339/https://github.com/lodash/lodash/issues/4744
https://github.com/lodash/lodash/issues/4744
https://www.oracle.com//security-alerts/cpujul2021.html
https://www.oracle.com/security-alerts/cpujan2022.html
https://github.com/lodash/lodash/commit/c84fe82760fb2d3e03a63379b297a1cc1a2fce12
https://www.oracle.com/security-alerts/cpuoct2021.html
https://nvd.nist.gov/vuln/detail/CVE-2020-8203
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CVSS v4
Base Score:
8.3
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.4
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
CVSS v2
Base Score:
5.8
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Weakness Type (CWE)
Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
CWE-1321
Allocation of Resources Without Limits or Throttling
CWE-770
EPSS
Base Score:
3.57