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 vite@4.3.9, vite@4.2.3, vite@4.1.5, vite@4.0.5, vite@3.2.7, and vite@2.9.16.
CVE-2023-34092
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 51.3%, top 2% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 86.6%
- KEV
- Not listed
Published
June 1, 2023
Last Modified
November 21, 2024
References (6)
- security-advisories@githubhttps://github.com/vitejs/vite/commit/813ddd6155c3d54801e264ba832d8347f6f66b32
- security-advisories@githubhttps://github.com/vitejs/vite/pull/13348
- security-advisories@githubhttps://github.com/vitejs/vite/security/advisories/GHSA-353f-5xf4-qw67
- af854a3a-2127-422b-91ae-364da2661108https://github.com/vitejs/vite/commit/813ddd6155c3d54801e264ba832d8347f6f66b32
- af854a3a-2127-422b-91ae-364da2661108https://github.com/vitejs/vite/pull/13348
- af854a3a-2127-422b-91ae-364da2661108https://github.com/vitejs/vite/security/advisories/GHSA-353f-5xf4-qw67
Affected Packages
(1 across 1 ecosystem)
npm(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| vite | — | 4.3.9 | — |
Weakness Classification(3)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 45× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:06 UTCEPSS rescore
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- 2026-05-25 00:09 UTCEG score recompute
- 2026-05-24 16:52 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain. Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Nucleihttp/cves/2023/CVE-2023-34092.yamlFirst seen Jan 1, 2023
Vite Dev Server - Information Exposure
Open source ↗
Related CVEs(same CWE)
Frequently asked(5)
What is CVE-2023-34092?
When was CVE-2023-34092 disclosed?
Is CVE-2023-34092 actively exploited?
What is the CVSS score of CVE-2023-34092?
How do I remediate CVE-2023-34092?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2023-34092
Is Your Infrastructure Affected by CVE-2023-34092?
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