Lodash
CVE-2020-8203
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2025 - Insecure Design
ASVS 5.0
V2 - Validation and Business Logic Resource allocation limits
MITRE ATT&CK
1 technique across 1 tactic: Impact The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 7.4 (HIGH). Attack characteristics: network attack vector, high complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could exhaust system resources through uncontrolled allocation by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20. Rated high severity (CVSS 7.4), this vulnerability is remotely exploitable, no authentication required. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Set resource limits, implement rate limiting, validate input sizes.
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 8 packages in npm, rubygems
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Allocation of Resources Without Limits (CWE-770), which allows attackers to exhaust system resources through uncontrolled allocation. Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20. Affected products include: Lodash, Oracle Banking Corporate Lending Process Management, Oracle Banking Credit Facilities Process Management, Oracle Banking Extensibility Workbench, Oracle Banking Liquidity Management. Version information: before 4.17.20..
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Severity by source
AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
Affected Products (CPE)NVD
Lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function. Rated high severity (CVS
Server-side code injection in Lodash's _.template function (lodash, lodash-es, lodash-amd and lodash.template, versions
Versions of lodash lower than 4.17.12 are vulnerable to Prototype Pollution. Rated critical severity (CVSS 9.1), this vu
Lodash versions up to 4.17.22 is affected by improperly controlled modification of object prototype attributes (prototyp
lodash prior to 4.17.11 is affected by: CWE-400: Uncontrolled Resource Consumption. Rated medium severity (CVSS 6.5), th
lodash node module before 4.17.5 suffers from a Modification of Assumed-Immutable Data (MAID) vulnerability via defaults
Prototype pollution in Lodash 4.17.23 and earlier allows unauthenticated remote attackers to delete properties from buil
NVD
CVE.org
EPSS
GitHub
Exploit-DB