CVE-2024-23331Public exploitNetwork attack vector

Unauthenticated file disclosure via case-sensitive deny matching

Published Jan 19, 2024 · Updated Jun 17, 2025

Information disclosure in affected Vite dev servers allows remote attackers to read denied files via case-altered filesystem paths. The deny matcher uses picomatch's case-sensitive default while the file server resolves names case-insensitively, so altered filename casing evades the block list. Exposure requires an accessible dev server on a case-insensitive filesystem; affected releases are 2.7.0 through 2.9.16, 3.0.0 through 3.2.7, 4.0.0 through 4.5.1, and 5.0.0 through 5.0.11.

CVSS severity7.5
High
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Information disclosure in affected Vite dev servers allows remote attackers to read denied files via case-altered filesystem paths. The deny matcher uses picomatch's case-sensitive default while the file server resolves names case-insensitively, so altered filename casing evades the block list. Exposure requires an accessible dev server on a case-insensitive filesystem; affected releases are 2.7.0 through 2.9.16, 3.0.0 through 3.2.7, 4.0.0 through 4.5.1, and 5.0.0 through 5.0.11.

The record

CVE
CVE-2024-23331
Published
Jan 19, 2024
Updated
Jun 17, 2025
Vendor
Vite
Product
Vite
Classifications
CWE-200, CWE-178, CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 19, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>=2.7.0, < 2.9.17
  2. Affected versionversion=>=3.0.0, <3.2.8
  3. Affected versionversion=>=4.0.0, < 4.5.2
  4. Affected versionversion=>=5.0.0, < 5.0.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Vite · Viteversion=>=2.7.0, < 2.9.17; version=>=3.0.0, <3.2.8; version=>=4.0.0, < 4.5.2; version=>=5.0.0, < 5.0.12

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-178Improper Handling of Case Sensitivity
CWE-284Improper Access Control
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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