CVSS 4.0
6.3 mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NCVE-2026-39365
Medium (6.3). EPSS 0.9% chance of exploitation in the next 30 days. Fixed in vite 6.4.2, 7.3.2, 8.0.5.
Vite is a frontend tooling framework for JavaScript. From 6.0.0 to before 6.4.2, 7.3.2, and 8.0.5, the dev server’s handling of .map requests for optimized dependencies resolves file paths and calls readFile without restricting ../ segments in the URL. As a result, it is possible to bypass the server.fs.strict allow list and retrieve .map files located outside the project root, provided they can be parsed as valid source map JSON. This vulnerability is fixed in 6.4.2, 7.3.2, and 8.0.5.
Severity
CVSS 3.1
5.3 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N- EPSS
- 0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
- CWE
- CWE-22
- Published
- Modified
- Record from
- the NVD, synced
Affected
- vitejs:vite
- voidzero:vite\+
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-4w7w-66w2-5vf9 | npm | vite | >=8.0.0 <8.0.5 | 8.0.5 |
| GHSA-4w7w-66w2-5vf9 | npm | vite | >=7.0.0 <7.3.2 | 7.3.2 |
| GHSA-4w7w-66w2-5vf9 | npm | vite | <6.4.2 | 6.4.2 |