chore: update dependency webpack-dev-server to v5.2.4 [security]

[seqeralabs-renovate]

This PR contains the following updates:

Package	Type	Update	Change
webpack-dev-server	overrides	patch	5.2.3 → 5.2.4
webpack-dev-server	dependencies	patch	5.2.3 → 5.2.4

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webpack-dev-server vulnerable to cross-origin source code exposure on non-HTTPS origins

CVE-2026-6402 / GHSA-79cf-xcqc-c78w

More information

Details

Impact

When webpack-dev-server is running on a non-HTTPS origin (the default), cross-origin requests from malicious websites can load the dev server's JavaScript bundles via <script> tags. The fix introduced in v5.2.1 (CVE-2025-30359) relied on Sec-Fetch-Mode and Sec-Fetch-Site request headers to block these requests, but browsers only send these headers for potentially trustworthy origins. Over plain HTTP, the headers are absent and the check is bypassed.

An attacker who knows the dev server's host, port, and output path can exfiltrate all module source code by intercepting the webpack runtime's module registration.

This does not affect Chrome 142+ (and other Chromium-based browsers) due to local network access restrictions.

Patches

Patched in webpack-dev-server >= 5.2.4 by setting Cross-Origin-Resource-Policy: same-origin on responses.

Workarounds

Run the dev server with HTTPS enabled (--https or server.type: 'https' in config).

Resources

• GHSA-4v9v-hfq4-rm2v (CVE-2025-30359) - original vulnerability
• GHSA-9jgg-88mc-972h (CVE-2025-30360) - prior bypass

Severity

• CVSS Score: 5.3 / 10 (Medium)
• Vector String: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

References

• https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-4v9v-hfq4-rm2v
• https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-79cf-xcqc-c78w
• https://github.com/webpack/webpack-dev-server/security/advisories/GHSA-9jgg-88mc-972h
• https://nvd.nist.gov/vuln/detail/CVE-2026-6402
• https://cna.openjsf.org/security-advisories.html
• https://github.com/advisories/GHSA-79cf-xcqc-c78w

This data is provided by the GitHub Advisory Database (CC-BY 4.0).

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Release Notes

webpack/webpack-dev-server (webpack-dev-server)

v5.2.4

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