CVE-2026-53633

A flaw was found in Vitest Browser Mode, a component of the Vitest testing framework. The cdp API exposed raw Chrome DevTools Protocol CDP methods without proper security restrictions. This vulnerability allows a remote attacker, with access to browser API metadata, to leverage CDP functions like...

CVE-2026-47428

A flaw was found in Vitest, a testing framework. In Vitest Browser Mode, a remote attacker could craft a specific browser-runner URL that, when visited, would allow the execution of arbitrary JavaScript code within the Vitest server. This vulnerability could also lead to the recovery of the...

CVE-2026-53633

Vitest is a testing framework powered by Vite. From 3.0.0 until 3.2.5, 4.1.8, and 5.0.0-beta.4, Vitest Browser Mode exposed a cdp API that forwarded raw Chrome DevTools Protocol methods without being gated by allowWrite or allowExec, allowing a remote client with exposed browser API metadata to u...

CVE-2026-53633 Vitest: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE

Vitest is a testing framework powered by Vite. From 3.0.0 until 3.2.5, 4.1.8, and 5.0.0-beta.4, Vitest Browser Mode exposed a cdp API that forwarded raw Chrome DevTools Protocol methods without being gated by allowWrite or allowExec, allowing a remote client with exposed browser API metadata to u...

CVE-2026-47428 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 /vitesttest/ 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...

CVE-2026-47428

Vitest browser mode is affected by an XSS in which the otelCarrier query parameter is inserted directly into an inline script. Affected versions are 4.0.17 through 4.1.6 and 5.0.0-beta.3; this can allow an attacker to craft a browser-runner URL to execute arbitrary JavaScript in the Vitest server...

CVE-2026-47428 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 /vitesttest/ 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...

@aamini/config (>=0.0.1 <=0.0.13), @baic/preset-yolk-taro-miniprogram (>=2.1.0-alpha.278 <=2.1.0-alpha.281) +9 more potentially affected by CVE-2026-47428 via @vitest/browser (>=4.0.17 <=4.1.5)

@vitest/browser NPM version =4.0.17, =0.0.1, =2.1.0-alpha.278, =2.1.0-alpha.278, =2.1.0-alpha.278, =2.1.0-alpha.278, =2.1.0-alpha.278, =4.0.2, =4.0.2, =4.0.2, =0.5.0, =0.1.13, =0.2.2 Source cves: CVE-2026-47428 Source advisory: SNYK:JS-VITESTBROWSER-17120486...

Cross-site Scripting (XSS)

Overview @vitest/browser is a Browser running for Vitest Affected versions of this package are vulnerable to Cross-site Scripting XSS via the otelCarrier query parameter being directly inserted into an inline script without sanitization. An attacker can execute arbitrary JavaScript in the context...

@aamini/config (>=0.0.1 <=0.0.13), @baic/preset-yolk-taro-miniprogram (>=2.1.0-alpha.278 <=2.1.0-alpha.281) +9 more potentially affected by CVE-2026-47428 via @vitest/browser (>=4.0.17 <=4.1.5)

@vitest/browser NPM version =4.0.17, =0.0.1, =2.1.0-alpha.278, =2.1.0-alpha.278, =2.1.0-alpha.278, =2.1.0-alpha.278, =2.1.0-alpha.278, =4.0.2, =4.0.2, =4.0.2, =0.5.0, =0.1.13, =0.2.2 Source cves: CVE-2026-47428 Source advisory: OSV:GHSA-2H32-95RG-CPPP...

@vitest/browser-playwright (>=5.0.0-beta.1 <=5.0.0-beta.2), @vitest/browser-preview (>=5.0.0-beta.1 <=5.0.0-beta.2) +1 more potentially affected by CVE-2026-47428 via @vitest/browser (>=5.0.0-beta.1 <=5.0.0-beta.2)

@vitest/browser NPM version =5.0.0-beta.1, =5.0.0-beta.1, =5.0.0-beta.1, =5.0.0-beta.1, =5.0.0-beta.2 Source cves: CVE-2026-47428 Source advisory: OSV:GHSA-2H32-95RG-CPPP...

@vitest/browser-playwright (>=5.0.0-beta.1 <=5.0.0-beta.2), @vitest/browser-preview (>=5.0.0-beta.1 <=5.0.0-beta.2) +1 more potentially affected by CVE-2026-47428 via @vitest/browser (>=5.0.0-beta.1 <=5.0.0-beta.2)

@vitest/browser NPM version =5.0.0-beta.1, =5.0.0-beta.1, =5.0.0-beta.1, =5.0.0-beta.1, =5.0.0-beta.2 Source cves: CVE-2026-47428 Source advisory: SNYK:JS-VITESTBROWSER-17120486...

GHSA-2H32-95RG-CPPP Vitest browser mode serves unsanitized otelCarrier query parameter as inline script

Summary Vitest browser mode served /vitesttest/ with the otelCarrier query parameter inserted directly into an inline module script. Because this value was treated as JavaScript source rather than data, an attacker could craft a browser-runner URL that executes arbitrary JavaScript in the Vitest...

Vitest browser mode serves unsanitized otelCarrier query parameter as inline script

Summary Vitest browser mode served /vitesttest/ with the otelCarrier query parameter inserted directly into an inline module script. Because this value was treated as JavaScript source rather than data, an attacker could craft a browser-runner URL that executes arbitrary JavaScript in the Vitest...

Missing Authorization

Overview @vitest/browser is a Browser running for Vitest Affected versions of this package are vulnerable to Missing Authorization through the api and browser.api request handlers in the server and UI components. An attacker can run tests, modify project files, or overwrite snapshots by connectin...

@1771technologies/oneplay (>=0.0.1 <=0.0.6), @baic/preset-yolk-taro-miniprogram (>=2.1.0-alpha.249 <=2.1.0-alpha.251) +7 more potentially affected by CVE-2026-47429 via @vitest/browser (>=3.0.5 <=3.2.4)

@vitest/browser NPM version =3.0.5, =0.0.1, =2.1.0-alpha.249, =2.1.0-alpha.249, =2.1.0-alpha.249, =2.1.0-alpha.249, =2.1.0-alpha.249, =3.8.0, =1.0.1, =0.0.2, =0.0.5 Source cves: CVE-2026-47429 Source advisory: SNYK:JS-VITESTBROWSER-17120327...

@baic/preset-yolk-taro-miniprogram (>=2.1.0-alpha.278 <=2.1.0-alpha.281), @baic/preset-yolk-umi-mobile (>=2.1.0-alpha.278 <=2.1.0-alpha.281) +8 more potentially affected by CVE-2026-47429 via @vitest/browser (>=4.0.0-beta.11 <=4.1.0-beta.2)

@vitest/browser NPM version =4.0.0-beta.11, =2.1.0-alpha.278, =2.1.0-alpha.278, =2.1.0-alpha.278, =2.1.0-alpha.278, =2.1.0-alpha.278, =4.0.0, =4.0.0, =4.0.0, =0.5.0, =0.1.0, =0.2.0-alpha.4 Source cves: CVE-2026-47429 Source advisory: SNYK:JS-VITESTBROWSER-17120327...

PT-2026-45491

Name of the Vulnerable Software and Affected Versions Vitest versions 4.0.17 through 4.1.5 Vitest versions 5.0.0-beta.0 through 5.0.0-beta.2 Description In browser mode, the software serves the '/ vitest test /' endpoint where the otelCarrier query parameter is inserted directly into an inline...