CVE-2026-46695 Details
Description
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.
A critical vulnerability exists in Boxlite versions prior to 0.9.0, allowing malicious code executed within a container to bypass read-only restrictions on mounted host directories. Boxlite, a service for running untrusted code in lightweight virtual machines, initially claims to enforce read-only access by adding a specific flag when mounting directories. However, the application fails to properly restrict kernel capabilities within the container, enabling code to remount directories with write access. This flaw can be exploited to modify files in directories intended to be read-only, potentially leading to unauthorized changes in sensitive host data such as credentials and configuration files. The vulnerability has been patched in version 0.9.0.
Users should upgrade to Boxlite version 0.9.0 or later. Instructions for upgrading are available in the Boxlite GitHub repository.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Jun 10, 2026CISA-ADP
Assessed Jun 11, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/boxlite-ai/boxlite/security/advisories/GHSA-g6ww-w5j2-r7x3 | CISA-ADP | AdvisoryExploitRemedyVendor |
| https://github.com/boxlite-ai/boxlite/pull/454 | [email protected] | Issue TrackingVendor |
| https://github.com/boxlite-ai/boxlite/releases/tag/v0.9.0 | [email protected] | Release NotesVendor |
| https://github.com/boxlite-ai/boxlite/security/advisories/GHSA-g6ww-w5j2-r7x3 | [email protected] | AdvisoryExploitRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-284 | Improper Access Control | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Boxlite | < 0.9.0 (semver) |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 23, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Jun 11, 2026 | CVE Modified | CISA-ADP |
| Jun 10, 2026 | New CVE Received | [email protected] |