webpack-dev-server-5.2.3.tgz: 3 vulnerabilities (highest severity is: 9.8)

[mend-bolt-for-github]

Vulnerable Library - webpack-dev-server-5.2.3.tgz

Path to dependency file: /frontend/package.json

Path to vulnerable library: /frontend/node_modules/uuid/package.json

Vulnerabilities

Vulnerability	Severity	CVSS	Dependency	Type	Fixed in (webpack-dev-server version)	Remediation Possible**
CVE-2026-41907	Critical	9.8	uuid-8.3.2.tgz	Transitive	N/A*	❌
CVE-2026-6321	High	7.5	fast-uri-3.1.0.tgz	Transitive	N/A*	❌
CVE-2026-41988	Low	3.2	uuid-8.3.2.tgz	Transitive	N/A*	❌

*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.

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

Details

CVE-2026-41907

Vulnerable Library - uuid-8.3.2.tgz

RFC4122 (v1, v4, and v5) UUIDs

Library home page: https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz

Path to dependency file: /frontend/package.json

Path to vulnerable library: /frontend/node_modules/uuid/package.json

Dependency Hierarchy:

• webpack-dev-server-5.2.3.tgz (Root Library)
  • sockjs-0.3.24.tgz
    • ❌ uuid-8.3.2.tgz (Vulnerable Library)

Found in base branch: master

Vulnerability Details

uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs. Prior to 14.0.0, v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset). This allows silent partial writes into caller-provided buffers. This vulnerability is fixed in 14.0.0.

Publish Date: 2026-04-24

URL: CVE-2026-41907

CVSS 3 Score Details (9.8)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Network
  • Attack Complexity: Low
  • 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-w5hq-g745-h8pq

Release Date: 2026-04-24

Fix Resolution: uuid - 14.0.0,https://github.com/uuidjs/uuid.git - v14.0.0

Step up your Open Source Security Game with Mend here

CVE-2026-6321

Vulnerable Library - fast-uri-3.1.0.tgz

Dependency-free RFC 3986 URI toolbox

Library home page: https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.0.tgz

Path to dependency file: /frontend/package.json

Path to vulnerable library: /frontend/node_modules/fast-uri/package.json

Dependency Hierarchy:

• webpack-dev-server-5.2.3.tgz (Root Library)
  • webpack-dev-middleware-7.4.5.tgz
    • schema-utils-4.3.3.tgz
      • ajv-8.20.0.tgz
        • ❌ fast-uri-3.1.0.tgz (Vulnerable Library)

Found in base branch: master

Vulnerability Details

fast-uri decoded percent-encoded path separators and dot segments before applying dot-segment removal in its normalize() and equal() functions. Encoded path data was treated like real slashes and parent-directory references, so distinct URIs could collapse onto the same normalized path. Applications that normalize or compare attacker-controlled URLs to enforce path-based policy can be bypassed, with a path that appears confined under an allowed prefix normalizing to a different location. Versions <= 3.1.0 are affected. Update to 3.1.1 or later.

Publish Date: 2026-05-04

URL: CVE-2026-6321

CVSS 3 Score Details (7.5)

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: High
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-q3j6-qgpj-74h6

Release Date: 2026-05-04

Fix Resolution: fast-uri - 3.1.1

Step up your Open Source Security Game with Mend here

CVE-2026-41988

Vulnerable Library - uuid-8.3.2.tgz

RFC4122 (v1, v4, and v5) UUIDs

Library home page: https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz

Path to dependency file: /frontend/package.json

Path to vulnerable library: /frontend/node_modules/uuid/package.json

Dependency Hierarchy:

• webpack-dev-server-5.2.3.tgz (Root Library)
  • sockjs-0.3.24.tgz
    • ❌ uuid-8.3.2.tgz (Vulnerable Library)

Found in base branch: master

Vulnerability Details

uuid before 14.0.0 can make unexpected writes when external output buffers are used, and the UUID version is 3, 5, or 6. In particular, UUID version 4, which is very commonly used, is unaffected by this issue.

Publish Date: 2026-04-23

URL: CVE-2026-41988

CVSS 3 Score Details (3.2)

Base Score Metrics:

• Exploitability Metrics:
  • Attack Vector: Local
  • Attack Complexity: High
  • Privileges Required: None
  • User Interaction: None
  • Scope: Changed
• Impact Metrics:
  • Confidentiality Impact: None
  • Integrity Impact: Low
  • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2026-04-23

Fix Resolution: uuid - 14.0.0,uuid - 14.0.0

Step up your Open Source Security Game with Mend here

[mend-bolt-for-github]

✔️ This issue was automatically closed by Mend because the vulnerable library in the specific branch(es) was either marked as ignored or it is no longer part of the Mend inventory.

[mend-bolt-for-github]

ℹ️ This issue was automatically re-opened by Mend because the vulnerable library in the specific branch(es) has been detected in the Mend inventory.