CVE-2026-46695 BoxLite: Permission Bypass in boxlite Allows Modification of Read-Only Files

Critical 10.0 Published Updated

Attackers can bypass read-only restrictions in BoxLite containers to modify files by exploiting unrestricted kernel capabilities.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-46695?

CVE-2026-46695 is a critical vulnerability in boxlite-ai boxlite, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-284

Which versions are affected by CVE-2026-46695?

13 open source packages ship an affected version, including github.com/boxlite-ai/boxlite/sdks/go, boxlite and boxlite-cli.

PackageAffectedFixed in
github.com/boxlite-ai/boxlite/sdks/go GoAll versions0.9.0
github.com/boxlite-ai/boxlite/sdks/go GoAll versions0.9.0
github.com/boxlite-ai/boxlite/sdks/go GoAll versions0.9.0
boxlite PyPIAll versions0.9.0
boxlite PyPIAll versions0.9.0
boxlite PyPIAll versions0.9.0
7 more packages
boxlite crates.ioAll versions0.9.0
boxlite crates.ioAll versions0.9.0
boxlite crates.ioFrom 0.0.0-00.9.0
boxlite-cli crates.ioAll versions0.9.0
boxlite-cli crates.ioAll versions0.9.0
@boxlite-ai/boxlite npmAll versions0.9.0
@boxlite-ai/boxlite npmAll versions0.9.0

How do I fix CVE-2026-46695?

Upgrade github.com/boxlite-ai/boxlite/sdks/go to 0.9.0 or later.

Is CVE-2026-46695 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46695 exists.

Sources

Also known as GHSA-g6ww-w5j2-r7x3, GO-2026-5392, PYSEC-2026-299, RUSTSEC-2026-0147.

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