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CVE-2026-4440 is a critical memory corruption vulnerability in Google Chrome's WebGL implementation, specifically in the ANGLE Vulkan backend, affecting Chrome versions prior to 146.0.7680.153. The flaw is described as an out-of-bounds read and write reachable from a crafted HTML page. Available technical detail indicates the root cause is a 32-bit integer overflow during texture buffer size calculation for WebGL texture allocation and copy operations. A documented trigger involves texStorage3D() with a 4096×4096 RGBA8 texture array using 64 or more layers, where the computed size reaches 2^32 bytes and wraps to zero in a 32-bit accumulator. Subsequent processing in downstream buffer-copy and format-conversion paths can then read from or write beyond the allocated buffer, producing attacker-influenced arbitrary read/write conditions within the affected process. Because the bug is exposed through WebGL content rendered from a malicious webpage, exploitation is remotely reachable through normal browser content handling.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
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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.
8 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Chrome WebGL out-of-bounds read/write vulnerability caused by a 32-bit integer overflow in ANGLE's Vulkan backend texture buffer size calculations, enabling GPU-process memory corruption and cross-process information disclosure on unpatched Chrome versions.
A critical out-of-bounds read/write vulnerability in Chrome's WebGL component that could enable remote code execution through crafted web content.
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.