Loading vulnerability…
CVE-2026-53633 is a critical remote code execution vulnerability in Vitest Browser Mode affecting versions 3.0.0 through before 3.2.5, 4.0.0 through before 4.1.8, and 5.0.0-beta.0 through before 5.0.0-beta.4. The flaw arises because the Browser Mode cdp() API forwards raw Chrome DevTools Protocol commands without enforcing the intended write and execution restrictions controlled by allowWrite and allowExec. A remote client that can access exposed browser API metadata can abuse CDP functionality, including methods that enable file overwrite and script evaluation, to replace the project’s configuration and cause Vitest to execute attacker-controlled Node.js code when the configuration is reloaded. The issue is particularly relevant to Browser Mode deployments using a CDP-capable provider such as Chromium-based automation backends.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
3 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A critical remote code execution vulnerability in Vitest Browser Mode where an exposed cdp() API could proxy raw Chrome DevTools Protocol methods and bypass intended write/exec restrictions, enabling overwrite of vite.config.ts and execution of attacker-controlled Node.js code.
A critical remote code execution vulnerability in Vitest Browser Mode caused by exposure of the cdp() API, allowing attackers to overwrite vite.config.ts and achieve attacker-controlled Node.js code execution on the host running Vitest.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.