Vulnerable Library - lodash-4.17.15.tgz

Lodash modular utilities.

Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/lodash/package.json

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (lodash version)	Remediation Possible**
CVE-2026-4800	High	8.1	lodash-4.17.15.tgz	Direct	lodash-amd - 4.18.0,lodash.template - 4.18.0,lodash-es - 4.18.0,lodash - 4.18.0	❌
CVE-2020-8203	High	7.4	lodash-4.17.15.tgz	Direct	4.17.19	✅
CVE-2025-13465	High	7.2	lodash-4.17.15.tgz	Direct	lodash-amd - 4.17.23,lodash - 4.17.23,lodash-es - 4.17.23	❌
CVE-2021-23337	High	7.2	lodash-4.17.15.tgz	Direct	4.17.21	✅
CVE-2026-2950	Medium	6.5	lodash-4.17.15.tgz	Direct	4.17.23	✅
CVE-2020-28500	Medium	5.3	lodash-4.17.15.tgz	Direct	lodash - 4.17.21,lodash-es - 4.17.21,lodash-rails - 4.17.21	❌

**In some cases, Remediation PR cannot be created automatically for a vulnerability despite the availability of remediation

Details

CVE-2026-4800

Vulnerable Library - lodash-4.17.15.tgz

Lodash modular utilities.

Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/lodash/package.json

Dependency Hierarchy:

• ❌ lodash-4.17.15.tgz (Vulnerable Library)

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Found in base branch: master

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

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.template - 4.18.0,lodash-es - 4.18.0,lodash - 4.18.0

CVE-2020-8203

Vulnerable Library - lodash-4.17.15.tgz

Lodash modular utilities.

Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/lodash/package.json

Dependency Hierarchy:

• ❌ lodash-4.17.15.tgz (Vulnerable Library)

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Found in base branch: master

Vulnerability Details

Prototype pollution attack when using _.zipObjectDeep in lodash before 4.17.20.

Publish Date: 2020-07-15

URL: CVE-2020-8203

CVSS 3 Score Details (7.4)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Unchanged
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: High
  • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://www.npmjs.com/advisories/1523

Release Date: 2020-07-15

Fix Resolution: 4.17.19

⛑️ Automatic Remediation will be attempted for this issue.

CVE-2025-13465

Vulnerable Library - lodash-4.17.15.tgz

Lodash modular utilities.

Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/lodash/package.json

Dependency Hierarchy:

• ❌ lodash-4.17.15.tgz (Vulnerable Library)

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Found in base branch: master

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

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-2021-23337

Vulnerable Library - lodash-4.17.15.tgz

Lodash modular utilities.

Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/lodash/package.json

Dependency Hierarchy:

• ❌ lodash-4.17.15.tgz (Vulnerable Library)

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Found in base branch: master

Vulnerability Details

Lodash versions prior to 4.17.21 are vulnerable to Command Injection via the template function.

Publish Date: 2021-02-15

URL: CVE-2021-23337

CVSS 3 Score Details (7.2)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: High
  • 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-35jh-r3h4-6jhm

Release Date: 2021-02-15

Fix Resolution: 4.17.21

⛑️ Automatic Remediation will be attempted for this issue.

CVE-2026-2950

Vulnerable Library - lodash-4.17.15.tgz

Lodash modular utilities.

Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/lodash/package.json

Dependency Hierarchy:

• ❌ lodash-4.17.15.tgz (Vulnerable Library)

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Found in base branch: master

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

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.

CVE-2020-28500

Vulnerable Library - lodash-4.17.15.tgz

Lodash modular utilities.

Library home page: https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz

Path to dependency file: /package.json

Path to vulnerable library: /node_modules/lodash/package.json

Dependency Hierarchy:

• ❌ lodash-4.17.15.tgz (Vulnerable Library)

Found in HEAD commit: 185069a9af406ebbf266a8f7ff196d415e54744f

Found in base branch: master

Vulnerability Details

Lodash versions prior to 4.17.21 are vulnerable to Regular Expression Denial of Service (ReDoS) via the toNumber, trim and trimEnd functions.

Publish Date: 2021-02-15

URL: CVE-2020-28500

CVSS 3 Score Details (5.3)

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: None
  • Availability Impact: Low

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-29mw-wpgm-hmr9

Release Date: 2021-02-15

Fix Resolution: lodash - 4.17.21,lodash-es - 4.17.21,lodash-rails - 4.17.21

---

⛑️Automatic Remediation will be attempted for this issue.