An issue was discovered in Browserify-HMR.
Priority LOW 36CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
An issue was discovered in Browserify-HMR. Attackers are able to steal developer's code because the origin of requests is not checked by the WebSocket server, which is used for HMR (Hot Module Replacement). Anyone can receive the HMR message sent by the WebSocket server via a ws://127.0.0.1:3123/ connection from any origin.
Why it matters now
EPSS 0.01691 77th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed browserify-hmr (npm): 0.4.0
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | browserify-hmr (npm) | before 0.4.0 | 0.4.0 | Patch available | GHSA-77q4-m83q-w76v |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- browserify-hmr (npm) Vendor— Affected before 0.4.0 Fixed in 0.4.0 Patch available GHSA-77q4-m83q-w76v
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:browserify-hot_module_replacement_project:browserify-hot_module_replacement:-:*:*:*:*:browserify:*:* | not specified by NVD | Vulnerable | Browserify-hot Module Replacement Project |
- cpe:2.3:a:browserify-hot_module_replacement_project:browserify-hot_module_replacement:-:*:*:*:*:browserify:*:* Versions not specified by NVD Vulnerable ·Browserify-hot Module Replacement Project
Remediation
- Fix · GHSA-77q4-m83q-w76v browserify-hmr (npm) Fixed in 0.4.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2018-14730
- 2026-10-03 Alias added: GHSA-77q4-m83q-w76v
References
Advisory 2
Sources
- CVE-2018-14730 · CVE Program
- CVE-2018-14730 · NVD
- FIRST EPSS
- GHSA-77q4-m83q-w76v · GitHub Advisory Database · CC BY 4.0
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