Vulnerability · Published Jun 10, 2026 · Assigned by GitHub_M

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

Critical 10.0

In plain English

A critical-severity improper access control in boxlite from boxlite-ai. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)10.0Critical

Exploit odds (30 days)0.3%top 78.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	github.com/boxlite-ai/boxlite/sdks/go	0.9.0	GHSA-g6ww-w5j2-r7x3
Go	github.com/boxlite-ai/boxlite/sdks/go	0.9.0	GO-2026-5392
PyPI	boxlite	0.9.0	GHSA-g6ww-w5j2-r7x3
PyPI	boxlite	0.9.0	PYSEC-2026-299
npm	@boxlite-ai/boxlite	0.9.0	GHSA-g6ww-w5j2-r7x3

Affected products (as reported)

Vendor	Product	Versions
boxlite-ai	boxlite	< 0.9.0

Weakness: CWE-284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N

References

https://github.com/boxlite-ai/boxlite/security/advisories/GHSA-g6ww-w5j2-r7x3 x_refsource_CONFIRM
https://github.com/boxlite-ai/boxlite/pull/454 x_refsource_MISC
https://github.com/boxlite-ai/boxlite/releases/tag/v0.9.0 x_refsource_MISC