CVE-2026-53571: Vitejs Vite path traversal (CVSS 7.5)

Description

Vite is a frontend tooling framework for JavaScript. Prior to 8.0.16, 7.3.5, and 6.4.3, the contents of files that are specified by server.fs.deny can be returned to the browser on Windows. Vite’s dev server denies direct access to sensitive files through server.fs.deny, including entries such as .env, .env.*, and *.{crt,pem}. However, on Windows, the deny logic does not correctly normalize NTFS ADS path forms before access checks are applied. Because of this, requests such as /.env::$DATA?raw are treated as allowed paths, while Windows resolves them to the original file's default data stream. Similar to that, Windows allows accessing a file using a different name with the 8.3 short name compatibility feature. Vite did not reject accessing files via them. This vulnerability is fixed in 8.0.16, 7.3.5, and 6.4.3.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityNone

AvailabilityNone

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

Affected products

Vitejs Vite≥ 7.0.0 < 7.3.5 · ≥ 8.0.0 < 8.0.16 · < 6.4.3

Voidzero Vite+< 0.1.24

Remediation

Fixed in

Vitejs Vite≥ 7.3.5

Voidzero Vite+≥ 0.1.24

Patch & vendor advisories

https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcff

References

https://github.com/vitejs/vite/security/advisories/GHSA-fx2h-pf6j-xcffExploitVendor Advisory

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2026-53571 being actively exploited?

CVE-2026-53571 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.58%.

How severe is CVE-2026-53571?

CVE-2026-53571 has a CVSS 3.1 base score of 7.5, rated high. EPSS estimates a 0.58% probability of exploitation.

Which products are affected by CVE-2026-53571?

Affected products include Vitejs Vite, Voidzero Vite+.

How do I fix CVE-2026-53571?

Upgrade affected software to a fixed version, for example Vitejs Vite 7.3.5, Voidzero Vite+ 0.1.24 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-53571 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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