CVE-2026-48546 KanaDojo < 0.1.18 Sandbox Escape RCE via messages.cjs

High 8.5 Published Updated

Attackers can execute arbitrary code and escalate privileges by exploiting a sandbox escape in the KanaDojo GitHub Actions workflow via malicious pull requests.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2026-48546?

CVE-2026-48546 is a high-severity code injection vulnerability in lingdojo kana-dojo, published on 11 Jun 2026. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

KanaDojo before 0.1.18 contains a sandbox escape vulnerability that allows an attacker to execute arbitrary code by exploiting the explicit passing of the global require function into a Node.js vm.runInNewContext() sandbox context in the issue-auto-respond.yml workflow. Attackers can submit a pull request modifying messages.cjs to import arbitrary Node.js modules, bypassing sandbox restrictions and achieving remote code execution with full GitHub Actions runner privileges including access to AUTOMATION_PR_TOKEN.

Weakness: CWE-693

Which versions are affected by CVE-2026-48546?

How do I fix CVE-2026-48546?

No fix has been published for CVE-2026-48546 yet. Limit exposure of the affected software until one is available.

Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.

Is CVE-2026-48546 being exploited?

There is no known exploitation of CVE-2026-48546 in the wild and no public exploit code.

Sources

Also known as GHSA-mq42-j95v-p3gq.

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