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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation poc

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Webpack
  • Webpack

No data.

No data.

References
Link Providers
https://github.com/webpack/webpack/security/advisories/GHSA-38r7-794h-5758 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-68157 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-68157 cve-icon
History

Sat, 07 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 threat_severity

Low

Fri, 06 Feb 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 06 Feb 2026 12:15:00 +0000

Type Values Removed Values Added
First Time appeared Webpack
Webpack webpack
Vendors & Products Webpack
Webpack webpack

Thu, 05 Feb 2026 23:15:00 +0000

Type Values Removed Values Added
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.
Title webpack buildHttp HttpUriPlugin allowedUris bypass via HTTP redirects
Weaknesses CWE-918
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N'}
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-02-05T23:08:13.214Z

Updated: 2026-02-06T19:29:14.352Z

Reserved: 2025-12-15T23:02:17.604Z

Link: CVE-2025-68157

cve-icon Vulnrichment

Updated: 2026-02-06T19:29:10.004Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-02-05T23:15:53.777

Modified: 2026-02-06T15:14:47.703

Link: CVE-2025-68157

cve-icon Redhat

Severity : Low

Publid Date: 2026-02-05T23:08:13Z

Links: CVE-2025-68157 - Bugzilla