BoxLite: Path Traversal Vulnerability in boxlite Leads to Arbitrary File Write on the Host
CVE-2026-46703

9.6CRITICAL

Key Information:

Vendor

Boxlite-ai

Status
Boxlite
Vendor
CVE Published:
10 June 2026

What is 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.

Affected Version(s)

boxlite < 0.9.0

References

https://github.com/boxlite-ai/boxlite/security/advisories...
x_refsource_CONFIRM
https://github.com/boxlite-ai/boxlite/releases/tag/v0.9.0
x_refsource_MISC

CVSS V3.1

Score:
9.6
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.