CVE-2026-112948CWE-200CWE-552information-disclosure

CVE-2026-112948

Medium · published October 20, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
33.8
In the wild
Unconfirmed
What it is

Vitest is a testing framework powered by Vite. From 5.0.0-beta.6 until 5.0.5, Vitest dev servers can misapply server.fs.deny because project servers replace Vite's defaults and the root server adds .vitest-secret-token after Vite compiles its matcher. An attacker who can reach an affected UI, Browser Mode, or API server can read denied project files or the fallback API token at node_modules/.vitest/.vitest-secret-token, and Browser Mode with test.projects can expose JavaScript-compatible .env values through a malicious website. This issue is fixed in version 5.0.5.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00406 · 33.8th percentile
Weaknesses
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor; CWE-552 · Files or Directories Accessible to External Parties
Published
2026-10-20T20:17Z
References (4)
https://github.com/vitest-dev/vitest/commit/28dc1edfb6ba5a181fe208576989063795aeadb3 · [email protected]https://github.com/vitest-dev/vitest/pull/11578 · [email protected]https://github.com/vitest-dev/vitest/releases/tag/v5.0.5 · [email protected]https://github.com/vitest-dev/vitest/security/advisories/GHSA-p458-7748-mcp3 · [email protected]
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 20 OCT 15:15Z
    Vitest: Servers misapply `server.fs.deny`, serving `.env`, private keys, `.git`, and the API token file
    cvelistv5
  • 20 OCT 15:15Z
    Vitest: Servers misapply `server.fs.deny`, serving `.env`, private keys, `.git`, and the API token file
    cvelistv5