Sandbox escape in Google Chrome DevTools
CVE-2026-12016 is a high-severity vulnerability in DevTools in Google Chrome prior to 149.0.7827.115. The issue is described as an inappropriate implementation / insufficient validation of untrusted input in DevTools. According to the provided content, a remote attacker who has already compromised the renderer process can use a crafted HTML page to potentially escape Chrome’s sandbox. The flaw affects Chromium-based browsers that ingest the vulnerable Chromium codebase, including Google Chrome and Microsoft Edge prior to the fixed releases noted in the advisories.
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Impact, mitigation & remediation
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
Impact
What an attacker gets, and what they’ve been doing with it.
Mitigation
If you can’t patch tonight, do this now.
Remediation
Patch, then assume compromise.
Exploits
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Affected products & vendors
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.
Recent activity
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A high-severity sandbox escape vulnerability in Google Chrome DevTools that could allow a remote attacker, after compromising the renderer process, to potentially escape the sandbox via a crafted HTML page.
A high-severity insufficient validation of untrusted input vulnerability in Chrome DevTools.
The version that knows your environment.
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.