CVE-2026-46703

Boxlite: Path Traversal Vulnerability Leads to Arbitrary File Write on the Host

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.

Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files. Typical impact: unauthorized file read or write outside the intended directory.

CVE-2026-46703 has a CVSS score of 9.6 (Critical). The vector is network-reachable, no privileges required, and user interaction required. A CVSS score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether this affects your application depends on whether the vulnerable code is present and reachable in your environment. A fixed version is available (0.9.0); upgrading removes the vulnerable code path.

Kodem intelligence

1. What is CVE-2026-46703? CVE-2026-46703 is a critical-severity path traversal vulnerability in boxlite (pip), affecting versions < 0.9.0. It is fixed in 0.9.0. Input manipulates file paths to reach files outside the intended directory, such as configuration or credential files.
2. How severe is CVE-2026-46703? CVE-2026-46703 has a CVSS score of 9.6 (Critical). This score reflects the worst-case severity of the vulnerability, not your specific exposure. Whether it represents real risk in your environment depends on whether the vulnerable code is present and reachable.
3. Which packages are affected by CVE-2026-46703?
   • boxlite (pip) (versions < 0.9.0)
   • boxlite-cli (rust) (versions < 0.9.0)
   • @boxlite-ai/boxlite (npm) (versions < 0.9.0)
   • github.com/boxlite-ai/boxlite/sdks/go (go) (versions < 0.9.0)
4. Is there a fix for CVE-2026-46703? Yes. CVE-2026-46703 is fixed in 0.9.0. Upgrade to this version or later.
5. Is CVE-2026-46703 exploitable, and should I be worried? Whether CVE-2026-46703 is exploitable in your environment depends on whether the vulnerable code is present and reachable. A CVSS score is a worst-case rating; it does not account for your specific deployment, configuration, or usage patterns. Kodem, an Intelligent Application Security platform, uses runtime intelligence to show which vulnerabilities actually execute in production, so you can focus on the ones that represent real risk. Get a demo
6. What actually determines whether CVE-2026-46703 is exploitable, and how bad it is? Exploitability and impact are not fixed properties of a CVE. They depend on runtime truth: whether the vulnerable code is present, reachable, and actually executes in your application. A high CVSS score on a dependency that never runs is not the same as real risk. Kodem, an Intelligent Application Security platform, uses runtime intelligence to reveal which vulnerabilities actually execute in production, so teams prioritize the ones that genuinely matter.
7. How do I fix CVE-2026-46703?
   • Upgrade boxlite to 0.9.0 or later
   • Upgrade boxlite-cli to 0.9.0 or later
   • Upgrade boxlite to 0.9.0 or later
   • Upgrade @boxlite-ai/boxlite to 0.9.0 or later
   • Upgrade github.com/boxlite-ai/boxlite/sdks/go to 0.9.0 or later