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Webpack CVE-2025-68458

LOW
Server-Side Request Forgery (SSRF) (CWE-918)
2026-02-05 security-advisories@github.com GHSA-8fgc-7cc6-rx7x
3.7
CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY
3.7 LOW
AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

4
Patch released
Mar 31, 2026 - 21:13 nvd
Patch available
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
PoC Detected
Feb 13, 2026 - 19:16 vuln.today
Public exploit code
CVE Published
Feb 05, 2026 - 23:15 nvd
LOW 3.7

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 16 npm packages depend on webpack (16 direct, 0 indirect)

Ecosystem-wide dependent count for version 5.49.0.

DescriptionGitHub Advisory

Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs that include userinfo (username:password@host). If allowedUris enforcement relies on a raw string prefix check (e.g., uri.startsWith(allowed)), a URL that looks allow-listed can pass validation while the actual network request is sent to a different authority/host after URL parsing. This is a policy/allow-list bypass that enables build-time SSRF behavior (outbound requests from the build machine to internal-only endpoints, depending on network access) and untrusted content inclusion (the fetched response is treated as module source and bundled). This issue has been patched in version 5.104.1.

AnalysisAI

Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs that include userinfo (username:password@host). [CVSS 3.7 LOW]

Technical ContextAI

Classified as CWE-918 (Server-Side Request Forgery (SSRF)). Affects Webpack. Webpack is a module bundler. From version 5.49.0 to before 5.104.1, when experiments.buildHttp is enabled, webpack’s HTTP(S) resolver (HttpUriPlugin) can be bypassed to fetch resources from hosts outside allowedUris by using crafted URLs that include userinfo (username:password@host). If allowedUris enforcement relies on a raw string prefix check (e.g., uri.startsWith(allowed)), a URL that looks allow-listed can pass validation while the actual network request is sent to a different authority/ho

RemediationAI

Fixed in version 5.104.1.. Restrict network access to the affected service where possible.

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CVE-2025-68458 vulnerability details – vuln.today

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