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CVE Vulnerability Details :
CVE-2026-47428
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-14 Jul, 2026 | 19:30
Updated At-15 Jul, 2026 | 13:20
Rejected At-
▼CVE Numbering Authority (CNA)
Vitest browser mode serves unsanitized otelCarrier query parameter as inline script

Vitest is a testing framework powered by Vite. From 4.0.17 until 4.1.6 and 5.0.0-beta.3, Vitest Browser Mode served /__vitest_test__/ with the otelCarrier query parameter inserted directly into an inline module script, allowing a crafted browser-runner URL to execute arbitrary JavaScript in the Vitest server origin and recover VITEST_API_TOKEN for authenticated API calls. This issue is fixed in versions 4.1.6 and 5.0.0-beta.3.

Affected Products
Vendor
vitest-dev
Product
vitest
Versions
Affected
  • >= 4.0.17, < 4.1.6
  • >= 5.0.0-beta.0, < 5.0.0-beta.3
Problem Types
TypeCWE IDDescription
CWECWE-79CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Type: CWE
CWE ID: CWE-79
Description: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Metrics
VersionBase scoreBase severityVector
3.19.6CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Version: 3.1
Base score: 9.6
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp
x_refsource_CONFIRM
https://github.com/vitest-dev/vitest/pull/10283
x_refsource_MISC
https://github.com/vitest-dev/vitest/pull/10285
x_refsource_MISC
https://github.com/vitest-dev/vitest/commit/18af98cee1830604d57f6a02bf28f8067cdffc06
x_refsource_MISC
https://github.com/vitest-dev/vitest/commit/3514f9fa135c90e1c35754fc4d27c9cf351faafa
x_refsource_MISC
https://github.com/vitest-dev/vitest/releases/tag/v4.1.6
x_refsource_MISC
https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.3
x_refsource_MISC
Hyperlink: https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/vitest-dev/vitest/pull/10283
Resource:
x_refsource_MISC
Hyperlink: https://github.com/vitest-dev/vitest/pull/10285
Resource:
x_refsource_MISC
Hyperlink: https://github.com/vitest-dev/vitest/commit/18af98cee1830604d57f6a02bf28f8067cdffc06
Resource:
x_refsource_MISC
Hyperlink: https://github.com/vitest-dev/vitest/commit/3514f9fa135c90e1c35754fc4d27c9cf351faafa
Resource:
x_refsource_MISC
Hyperlink: https://github.com/vitest-dev/vitest/releases/tag/v4.1.6
Resource:
x_refsource_MISC
Hyperlink: https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.3
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp
exploit
Hyperlink: https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp
Resource:
exploit
Details not found