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CVE-2026-47428
9.6 CRITICAL
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): Required (R)
- Scope (S): Changed (C)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): High (H)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): Required (R)
- Modified Confidentiality (MC): High (H)
- Modified Scope (MS): Changed (C)
- Modified Integrity (MI): High (H)
- Modified Availability (MA): High (H)
Activity log
- Created suggestion
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.
References
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https://github.com/vitest-dev/vitest/security/advisories/GHSA-2h32-95rg-cppp x_refsource_CONFIRM
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https://github.com/vitest-dev/vitest/pull/10283 x_refsource_MISC
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https://github.com/vitest-dev/vitest/pull/10285 x_refsource_MISC
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https://github.com/vitest-dev/vitest/releases/tag/v4.1.6 x_refsource_MISC
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https://github.com/vitest-dev/vitest/releases/tag/v5.0.0-beta.3 x_refsource_MISC
Affected products
vitest
- ==>= 4.0.17, < 4.1.6
- ==>= 5.0.0-beta.0, < 5.0.0-beta.3