CVE-2026-41211

CriticalPublic PoC

Published: 23 April 2026

Published

23 April 2026

Modified

29 April 2026

KEV Added

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Patch

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CVSS Score 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H

EPSS Score 0.0004 13.4th percentile

Risk Priority 20 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-41211 is a critical-severity Path Traversal (CWE-22) vulnerability in Voidzero Vite\+. Its CVSS base score is 10.0 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 13.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified are NIST 800-53 SI-10 (Information Input Validation) and SI-2 (Flaw Remediation).

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique. What defenders deploy: see the NIST 800-53 controls recommended below.

Threat & Defense Details

Mitigating Controls (NIST 800-53 r5)AI

SI-2 Flaw Remediation good match

prevent

Requires timely remediation of the path traversal flaw in Vite+ by upgrading to version 0.1.17 or later, directly eliminating the vulnerability.

SI-10 Information Input Validation good match

prevent

Mandates validation of the untrusted version string at system interfaces to block path traversal sequences before filesystem path construction.

SI-9 Information Input Restrictions good match

prevent

Restricts version inputs to safe characteristics excluding path separators and traversal sequences like '../', preventing directory escape.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1195 Supply Chain Compromise Initial Access

Adversaries may manipulate products or product delivery mechanisms prior to receipt by a final consumer for the purpose of data or system compromise.

attack.mitre.org →

Why these techniques?

Path traversal enables remote unauthenticated exploitation of the exposed toolchain (T1190) and facilitates supply chain compromise via arbitrary file writes/deletes outside the cache directory (T1195).

Confidence: MEDIUM · MITRE ATT&CK Enterprise v18.1

NVD Description

Vite+ is a unified toolchain and entry point for web development. Prior to version 0.1.17, `downloadPackageManager()` accepts an untrusted `version` string and uses it directly in filesystem paths. A caller can supply `../` segments or an absolute path to escape…

the `VP_HOME/package_manager/<pm>/` cache root and make Vite+ delete, replace, and populate directories outside the intended cache location. Version 0.1.17 contains a patch.

Deeper analysisAI

CVE-2026-41211 is a path traversal vulnerability (CWE-22) in Vite+, a unified toolchain and entry point for web development. In versions prior to 0.1.17, the `downloadPackageManager()` function accepts an untrusted `version` string and incorporates it directly into filesystem paths without sanitization. This allows attackers to include `../` path traversal sequences or absolute paths, enabling escape from the intended `VP_HOME/package_manager/<pm>/` cache root.

The vulnerability has a CVSS v3.1 base score of 10.0 (AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H), indicating critical severity with network accessibility, low attack complexity, no privileges or user interaction required, and scope change. Remote unauthenticated attackers who can invoke `downloadPackageManager()`—such as through malicious inputs in web development workflows—can exploit it to delete, replace, or populate arbitrary directories outside the cache root, potentially leading to filesystem disruption, persistence, or supply chain compromise.

Version 0.1.17 of Vite+ patches the issue by addressing the unsafe path handling. Security practitioners should upgrade to this version or later, as detailed in the GitHub Security Advisory at https://github.com/voidzero-dev/vite-plus/security/advisories/GHSA-33r3-4whc-44c2.