Medium
Vitest: Servers misapply `server.fs.deny`, serving `.env`, private keys, `.git`, and the API token file
Type: advisorySources: OSV
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-112948
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 03:26 UTC · Revision 1
Source evidence
Vitest: Servers misapply `server.fs.deny`, serving `.env`, private keys, `.git`, and the API token file
core-osv · Original sourcePublished 20 Oct 2026, 15:15 UTC
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.
osv:CVE-2026-112948
Complete source record
{
"id": "52580883b8cffd0baee9f3d0fe9f715635b25cdfb9faef532aeae6e6ceb91ce5",
"url": "https://osv.dev/vulnerability/CVE-2026-112948",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Vitest: Servers misapply `server.fs.deny`, serving `.env`, private keys, `.git`, and the API token file",
"summary": "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.",
"evidence": "osv:CVE-2026-112948",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2026-112948",
"aliases": [
"CVE-2026-112948",
"GHSA-p458-7748-mcp3"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/vitest-dev/vitest",
"type": "GIT",
"events": [
{
"introduced": "9c95ca115a4c678f16f80f027d663f475881190d"
},
{
"fixed": "7a825db43e2beca0b219d2eadaec334cb81af0c7"
},
{
"introduced": "0"
},
{
"fixed": "8014614475afa880f4e583b166bb91dea5415cc6"
},
{
"fixed": "28dc1edfb6ba5a181fe208576989063795aeadb3"
}
],
"database_specific": {
"extracted_events": [
{
"range": [
{
"introduced": "5.0.0-beta.6"
},
{
"fixed": "5.0.5"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"introduced": "1.0.0-rc.0"
},
{
"fixed": "1.3.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "28dc1edfb6ba5a181fe208576989063795aeadb3"
}
],
"source": "REFERENCES_COMMIT"
},
{
"range": [
{
"fixed": "7a825db43e2beca0b219d2eadaec334cb81af0c7"
}
],
"source": "REFERENCES_TAG",
"original_tag": "v5.0.5"
}
]
}
}
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-112948.json"
}
}
],
"modified": "2026-10-28T02:30:25.575056011Z",
"provider": "osv",
"references": [
"https://github.com/vitest-dev/vitest/releases/tag/v5.0.5",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112948.json",
"https://github.com/vitest-dev/vitest/security/advisories/GHSA-p458-7748-mcp3",
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"https://github.com/vitest-dev/vitest/pull/11578"
],
"provider_metadata": {
"cwe_ids": [
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],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112948.json"
}
},
"related_cves": [
{
"value": "CVE-2026-112948",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 492186,
"published_at": "2026-10-20T15:15:01.927+00:00"
}