CVE-2026-53571Public exploitNetwork attack vector

Sensitive file disclosure via Windows path aliases

Published Jun 22, 2026 · Updated Jun 22, 2026

Path traversal in the Vite dev server before 6.4.3, 7.0.0 through 7.3.4, and 8.0.0 through 8.0.15 allows remote attackers to read denied files. The deny check evaluates unnormalized NTFS alternate-data-stream syntax and 8.3 short names as allowed paths before Windows resolves them to protected files. Exploitation requires network exposure, a sensitive file inside server.fs.allow, and an NTFS volume or Windows volume with 8.3 short-name generation enabled.

CVSS severity8.2
High
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the Vite dev server before 6.4.3, 7.0.0 through 7.3.4, and 8.0.0 through 8.0.15 allows remote attackers to read denied files. The deny check evaluates unnormalized NTFS alternate-data-stream syntax and 8.3 short names as allowed paths before Windows resolves them to protected files. Exploitation requires network exposure, a sensitive file inside server.fs.allow, and an NTFS volume or Windows volume with 8.3 short-name generation enabled.

The record

CVE
CVE-2026-53571
Published
Jun 22, 2026
Updated
Jun 22, 2026
Vendor
Vite
Product
Vite
Classifications
CWE-200, CWE-69, CWE-58, CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 22, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=< 6.4.3
  2. Affected versionversion=>= 7.0.0, < 7.3.5
  3. Affected versionversion=>= 8.0.0, < 8.0.16

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Vite · Viteversion=< 6.4.3; version=>= 7.0.0, < 7.3.5; version=>= 8.0.0, < 8.0.16

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
8.2GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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-69Improper Handling of Windows ::DATA Alternate Data Stream
CWE-58Path Equivalence: Windows 8.3 Filename
CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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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