CVE-2026-46695CWE-284

BoxLite: Permission Bypass in boxlite Allows Modification of Read-Only Files

Critical · published June 10, 2026

CVSS v3.1
10.0
EPSS
0%
Percentile
40.4
In the wild
Unconfirmed
What it is

Boxlite is a sandbox service that allows users to create lightweight virtual machines (Boxes) and launch OCI containers within them to run untrusted code. Prior to version 0.9.0, Boxlite does not restrict the kernel capabilities available inside the container, malicious code can remount the directory in rw mode, thereby gaining write access to that directory. This allows malicious code to perform arbitrary write operations on directories that should be read-only. This issue has been patched in version 0.9.0.

The record
Technical detail
CVSS v3.1
10.0 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00479 · 40.4th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-06-10T22:20Z
EPSS history
Timeline
  • 10 JUN 22:20Z
    BoxLite: Permission Bypass in boxlite Allows Modification of Read-Only Files
    cvelistv5