CVE-2025-68458 | webpack buildHttp: allowedUris allow-list bypass via URL userinfo (@) leading to build-time SSRF behavior

Exp

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.

Published: 2026-02-05 Last update: 2026-02-13 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-68458 is rated Exploit Available (50/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.20%). 1 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2025-68458

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2025-68458

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.01% 0.20% +0.19%
2 2026-02-06 — 0.01% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-68458

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
3.7 3.1 LOW
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.2 2.5 [email protected]

Weakness enumeration for CVE-2025-68458

GitHub Security Advisory for CVE-2025-68458

GHSA-8fgc-7cc6-rx7x · Severity: low · Ecosystem: npm — webpack buildHttp: allowedUris allow-list bypass via URL userinfo (@) leading to build-time SSRF behavior

OS Trackers for CVE-2025-68458

vendor priority summary link
debian not yet assigned CVE-2025-68458 not yet assigned priority: Debian including 1 source packages (node-webpack), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): open 3, resolved 2. https://security-tracker.debian.org/tracker/CVE-2025-68458
redhat low — https://access.redhat.com/security/cve/CVE-2025-68458
ubuntu medium CVE-2025-68458 medium priority: Ubuntu including 1 source packages (node-webpack), 6 status rows across 6 suites (bionic, focal, jammy, noble, questing, upstream): needs-triage 6. https://ubuntu.com/security/CVE-2025-68458

Affected software / configurations for CVE-2025-68458

Vendor Product Version Raw CPE
webpack.js webpack >= 5.49.0, < 5.104.1 cpe:2.3:a:webpack.js:webpack:*:*:*:*:*:node.js:*:*

References for CVE-2025-68458

cvelogic Threat Intelligence