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CVE-2026-13281 is a high-severity integer overflow vulnerability in Mojo in Google Chrome prior to 149.0.7827.201. The flaw can be triggered in a scenario where an attacker has already compromised the renderer process and then leverages a malicious file to potentially escape Chrome's sandbox. Mojo is a core inter-process communication component in Chromium-based browsers, so memory-safety issues in this area can undermine process isolation and browser security boundaries. The vulnerability is described as enabling a security bypass rather than a direct initial compromise vector.
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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.
5 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
An integer overflow vulnerability in Google Chrome's Mojo component that could allow a security bypass via a crafted HTML page.
An integer overflow vulnerability in Chrome's Mojo component.
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.