p PatchFirst

CVE-2026-47213

CVE-2026-47213 · BoxLite: Timeout Bypass Vulnerability

This page contains facts from public vulnerability sources. Check the original advisory before updating.

Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers within them to run untrusted code. In versions 0.8.2 and prior, Boxlite allows users to configure a timeout for services running inside the virtual machine. When the timeout is triggered, Boxlite sends a signal to kill the process. However, instead of using the uncatchable SIGKILL signal, Boxlite uses the catchable SIGALRM signal. Malicious code running inside the sandbox can exploit this vulnerability to continue running after the timeout is triggered, leading to resource exhaustion within the virtual machine and affecting the availability of the Boxlite service. This issue has been patched via commit 28159fc.

CVSS 6.5 · Medium · EPSS 0.3%

Published
Updated

Stack: python

Affected products and versions

  • boxlite

    Versions
    • <= 0.8.2: Affected

    No fix published

  • boxlite PyPI

    Versions
    • 0.5.10
    • 0.5.11
    • 0.5.12
    • 0.5.13
    • 0.5.14
    • 0.5.9
    • 0.6.0
    • 0.7.0
    • 0.7.4
    • 0.7.5
    • 0.8.2
    Affected ranges
    • ECOSYSTEM: ≤ 0.8.2

    No fix published

  • boxlite PyPI

    Versions
    • 0.5.10
    • 0.5.11
    • 0.5.12
    • 0.5.13
    • 0.5.14
    • 0.5.2
    • 0.5.3
    • 0.5.4
    • 0.5.5
    • 0.5.6
    • 0.5.7
    • 0.5.8
    • 0.5.9
    • 0.6.0
    • 0.7.0
    • 0.7.4
    • 0.7.5
    • 0.8.2
    Affected ranges
    • ECOSYSTEM: ≤ 0.8.2

    No fix published

Original sources

Check your server →