webpack buildHttp HttpUriPlugin allowedUris bypass via HTTP redirects_CVE-2025-68157

3.7 / 10

LOW

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

Description

Webpack is a module bundler. From version 5.49.0 to before 5.104.0, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) enforces allowedUris only for the initial URL, but does not re-validate allowedUris after following HTTP 30x redirects. As a result, an import that appears restricted to a trusted allow-list can be redirected to HTTP(S) URLs outside the allow-list. This is a policy/allow-list bypass that enables build-time SSRF behavior (requests from the build machine to internal-only endpoints, depending on network access) and untrusted content inclusion in build outputs (redirected content is treated as module source and bundled). This issue has been patched in version 5.104.0.

Basic Information

ID CVE-2025-68157

Source GitHub_M

Published Feb 5, 2026 at 23:08

Affected Product

Vendor webpack

Product webpack

Version >= 5.49.0, < 5.104.0

Affected Versions webpack webpack >= 5.49.0, < 5.104.0

CWE Classification

CWE-918

References

github.com /webpack/webpack/security/advisories/GHSA-38r7-794h-5758

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