Vulnerable Library - lodash-4.17.21.tgz
Lodash modular utilities.
Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
CVE-2026-4800
Vulnerable Library - lodash-4.17.21.tgz
Lodash modular utilities.
Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy:
- ❌ lodash-4.17.21.tgz (Vulnerable Library)
Found in base branch: main
Reachability Analysis
This vulnerability is potentially reachable
learning-opentok-node-0.0.0/routes/index.js (Application)
-> ❌ lodash-4.17.21/lodash.js (Vulnerable Component)
Vulnerability Details
Impact:
The fix for CVE-2021-23337 (GHSA-35jh-r3h4-6jhm) added validation for the variable option in _.template but did not apply the same validation to options.imports key names. Both paths flow into the same Function() constructor sink.
When an application passes untrusted input as options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary code at template compilation time.
Additionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector, the polluted keys are copied into the imports object and passed to Function().
Patches:
Users should upgrade to version 4.18.0.
Workarounds:
Do not pass untrusted input as key names in options.imports. Only use developer-controlled, static key names.
Publish Date: 2026-03-31
URL: CVE-2026-4800
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.1%
CVSS 3 Score Details (8.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-r5fr-rjxr-66jc
Release Date: 2026-03-31
Fix Resolution: lodash-amd - 4.18.0,lodash - 4.18.0,lodash.template - 4.18.0,lodash-es - 4.18.0
CVE-2025-13465
Vulnerable Library - lodash-4.17.21.tgz
Lodash modular utilities.
Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy:
- ❌ lodash-4.17.21.tgz (Vulnerable Library)
Found in base branch: main
Reachability Analysis
This vulnerability is potentially reachable
learning-opentok-node-0.0.0/routes/index.js (Application)
-> ❌ lodash-4.17.21/lodash.js (Vulnerable Component)
Vulnerability Details
Lodash versions 4.0.0 through 4.17.22 are vulnerable to prototype pollution in the _.unset and _.omit functions. An attacker can pass crafted paths which cause Lodash to delete methods from global prototypes.
The issue permits deletion of properties but does not allow overwriting their original behavior.
This issue is patched on 4.17.23
Publish Date: 2026-01-21
URL: CVE-2025-13465
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.0%
CVSS 3 Score Details (7.2)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Changed
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-xxjr-mmjv-4gpg
Release Date: 2026-01-21
Fix Resolution: lodash-amd - 4.17.23,lodash - 4.17.23,lodash-es - 4.17.23
CVE-2026-2950
Vulnerable Library - lodash-4.17.21.tgz
Lodash modular utilities.
Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy:
- ❌ lodash-4.17.21.tgz (Vulnerable Library)
Found in base branch: main
Reachability Analysis
This vulnerability is potentially reachable
learning-opentok-node-0.0.0/routes/index.js (Application)
-> ❌ lodash-4.17.21/lodash.js (Vulnerable Component)
Vulnerability Details
Impact:
Lodash versions 4.17.23 and earlier are vulnerable to prototype pollution in the _.unset and _.omit functions. The fix for (CVE-2025-13465: GHSA-xxjr-mmjv-4gpg) only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows deletion of properties from built-in prototypes such as Object.prototype, Number.prototype, and String.prototype.
The issue permits deletion of prototype properties but does not allow overwriting their original behavior.
Patches:
This issue is patched in 4.18.0.
Workarounds:
None. Upgrade to the patched version.
Publish Date: 2026-03-31
URL: CVE-2026-2950
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.1%
CVSS 3 Score Details (6.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.
Suggested Fix
Type: Upgrade version
Origin: GHSA-xxjr-mmjv-4gpg
Release Date: 2026-03-31
Fix Resolution: 4.17.23
⛑️ Automatic Remediation will be attempted for this issue.
⛑️Automatic Remediation will be attempted for this issue.
Lodash modular utilities.
Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Vulnerabilities
**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation
Details
Vulnerable Library - lodash-4.17.21.tgz
Lodash modular utilities.
Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy:
Found in base branch: main
Reachability Analysis
This vulnerability is potentially reachable
Vulnerability Details
Impact:
The fix for CVE-2021-23337 (GHSA-35jh-r3h4-6jhm) added validation for the variable option in _.template but did not apply the same validation to options.imports key names. Both paths flow into the same Function() constructor sink.
When an application passes untrusted input as options.imports key names, an attacker can inject default-parameter expressions that execute arbitrary code at template compilation time.
Additionally, _.template uses assignInWith to merge imports, which enumerates inherited properties via for..in. If Object.prototype has been polluted by any other vector, the polluted keys are copied into the imports object and passed to Function().
Patches:
Users should upgrade to version 4.18.0.
Workarounds:
Do not pass untrusted input as key names in options.imports. Only use developer-controlled, static key names.
Publish Date: 2026-03-31
URL: CVE-2026-4800
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.1%
CVSS 3 Score Details (8.1)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: High
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-r5fr-rjxr-66jc
Release Date: 2026-03-31
Fix Resolution: lodash-amd - 4.18.0,lodash - 4.18.0,lodash.template - 4.18.0,lodash-es - 4.18.0
Vulnerable Library - lodash-4.17.21.tgz
Lodash modular utilities.
Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy:
Found in base branch: main
Reachability Analysis
This vulnerability is potentially reachable
Vulnerability Details
Lodash versions 4.0.0 through 4.17.22 are vulnerable to prototype pollution in the _.unset and _.omit functions. An attacker can pass crafted paths which cause Lodash to delete methods from global prototypes.
The issue permits deletion of properties but does not allow overwriting their original behavior.
This issue is patched on 4.17.23
Publish Date: 2026-01-21
URL: CVE-2025-13465
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.0%
CVSS 3 Score Details (7.2)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Changed
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-xxjr-mmjv-4gpg
Release Date: 2026-01-21
Fix Resolution: lodash-amd - 4.17.23,lodash - 4.17.23,lodash-es - 4.17.23
Vulnerable Library - lodash-4.17.21.tgz
Lodash modular utilities.
Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz
Path to dependency file: /package.json
Path to vulnerable library: /package.json
Dependency Hierarchy:
Found in base branch: main
Reachability Analysis
This vulnerability is potentially reachable
Vulnerability Details
Impact:
Lodash versions 4.17.23 and earlier are vulnerable to prototype pollution in the _.unset and _.omit functions. The fix for (CVE-2025-13465: GHSA-xxjr-mmjv-4gpg) only guards against string key members, so an attacker can bypass the check by passing array-wrapped path segments. This allows deletion of properties from built-in prototypes such as Object.prototype, Number.prototype, and String.prototype.
The issue permits deletion of prototype properties but does not allow overwriting their original behavior.
Patches:
This issue is patched in 4.18.0.
Workarounds:
None. Upgrade to the patched version.
Publish Date: 2026-03-31
URL: CVE-2026-2950
Threat Assessment
Exploit Maturity: Not Defined
EPSS: 0.1%
CVSS 3 Score Details (6.5)
Base Score Metrics:
- Exploitability Metrics:
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Impact Metrics:
- Confidentiality Impact: None
- Integrity Impact: Low
- Availability Impact: Low
For more information on CVSS3 Scores, click here.Suggested Fix
Type: Upgrade version
Origin: GHSA-xxjr-mmjv-4gpg
Release Date: 2026-03-31
Fix Resolution: 4.17.23
⛑️ Automatic Remediation will be attempted for this issue.
⛑️Automatic Remediation will be attempted for this issue.