Server-side Request Forgery (SSRF) Affecting webpack package, versions >=5.49.0 <5.104.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-WEBPACK-15235969
- published6 Feb 2026
- disclosed5 Feb 2026
- creditHanJeouk
Introduced: 5 Feb 2026
NewCVE-2025-68157 (opens in a new tab)How to fix?
Upgrade webpack to version 5.104.0 or higher.
Overview
Affected versions of this package are vulnerable to Server-side Request Forgery (SSRF) via the HttpUriPlugin component when HTTP redirects are followed without re-validating the allowed URIs. An attacker can cause unauthorized network requests to internal services and inclusion of untrusted content in build outputs by manipulating import URLs to trigger redirects outside the intended allow-list.
Note:
This is only exploitable if experiments.buildHttp is enabled.