CVE-2026-49143
CVE-2026-49143 · BrowserStack Runner 0.9.5 Unauthenticated RCE via /_log HTTP Handler
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
BrowserStack Runner through 0.9.5 contains a remote code execution vulnerability in the /_log HTTP handler that allows unauthenticated network-adjacent attackers to execute arbitrary code by submitting crafted JSON request bodies to the handler, which passes user-supplied data to vm.runInNewContext() combined with eval(). Attackers can escape the Node.js vm sandbox by leveraging a host-context Function reference through util.format to access the host process via this.constructor.constructor, achieving full remote code execution on the underlying system without any authentication.
CVSS 8.7 · Alta · EPSS 0,8%
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
browserstack-runner
- Versiones
- ≥ 0, ≤ 0.9.5: Afectada (semver)
Sin corrección publicada
browserstack-runner npm
- Intervalos de versiones afectados
- SEMVER: ≤ 0.9.5
Sin corrección publicada