CVE-2026-46703

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 allows users to specify the OCI image used by containers in the sandbox. However, when processing tar entries in OCI images, Boxlite does not account for the possibility that entries may be symlinks pointing to absolute paths. An attacker can craft a malicious OCI image and distribute it on image hosting platforms such as DockerHub, tricking users into using it. Once a user loads the malicious image, the attacker can write arbitrary content to any path on the host, which can further lead to remote code execution on the host. This issue has been patched in version 0.9.0.

• CWE-22

• https://github.com/boxlite-ai/boxlite/releases/tag/v0.9.0
• https://github.com/boxlite-ai/boxlite/security/advisories/GHSA-f396-4rp4-7v2j
• https://github.com/boxlite-ai/boxlite/security/advisories/GHSA-f396-4rp4-7v2j

Published

Jun 10, 2026

Last Modified

Jul 23, 2026

Status

Deferred

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