CVE-2023-34092

Vite Server Options (server.fs.deny) can be bypassed using double forward-slash (//)

HIGH

7.5

CVSS Score

Published: June 1, 2023 at 04:29 PM UTC

Updated: June 17, 2026 at 06:02 AM UTC

1 product affected across 1 vendorVite

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Severity

HIGH7.5

Exploit prediction

EPSS 3%

SSVC

PoC

Description

Vite provides frontend tooling. Prior to versions 2.9.16, 3.2.7, 4.0.5, 4.1.5, 4.2.3, and 4.3.9, Vite Server Options (`server.fs.deny`) can be bypassed using double forward-slash (//) allows any unauthenticated user to read file from the Vite root-path of the application including the default `fs.deny` settings (`['.env', '.env.*', '*.{crt,pem}']`). Only users explicitly exposing the Vite dev server to the network (using `--host` or `server.host` config option) are affected, and only files in the immediate Vite project root folder could be exposed. This issue is fixed in [email protected], [email protected], [email protected], [email protected], [email protected], and [email protected].

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Vite · Vitejsnpm

95%

v < 2.9.16v < 3.2.7v < 4.0.5v < 4.1.5v < 4.2.3v < 4.3.93.0.2 ≤ v < 3.2.74.0.0 ≤ v < 4.0.54.1.0 ≤ v < 4.1.54.2.0 ≤ v < 4.2.34.3.0 ≤ v < 4.3.92.9.15

Affected range stops below 2.9.16, so it looks safe — our inference, not a vendor statement

Affected range stops below 3.2.7, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.0.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.1.5, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.2.3, so it looks safe — our inference, not a vendor statement

Affected range stops below 4.3.9, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCPatch

Source: [email protected]

https://github.com/vitejs/vite/commit/813ddd6155c3d54801e264ba832d8347f6f66b32

x_refsource_MISCPatch

Source: [email protected]

https://github.com/vitejs/vite/pull/13348

x_refsource_CONFIRMExploitVendor Advisory

Source: [email protected]

https://github.com/vitejs/vite/security/advisories/GHSA-353f-5xf4-qw67

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHGitHub_M

Attack Vector: NETWORK
Complexity: LOW
Privileges: NONE
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: NONE
Availability: NONE

Vector?

Quick Info

StatusMODIFIED

CWE

CWE-50CWE-200CWE-706

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