Chrome 156 and Firefox 159 patch more than 200 flaws
CVE-2026-118306 can run arbitrary code outside Chrome's sandbox from a crafted HTML page; no in-the-wild exploitation is mentioned.
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CVE-2026-118306
Critical sandbox-escape memory corruption in Google Chrome FileSystem
- CVSS 3.1
- 9.6 critical
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
A critical memory corruption flaw exists in Chrome's FileSystem component prior to version 156.0.8078.73. A remote attacker can trigger it by luring a target to a crafted HTML page and may execute arbitrary code outside the sandbox. Any user running an outdated Chrome build is exposed while browsing.
What to do: Update Chrome to version 156.0.8078.73 or later; auto-update will roll this out, so verify clients have applied it.
| Product | Affected | Fixed in |
|---|---|---|
| Google Chrome | prior to 156.0.8078.73 | 156.0.8078.73 |
Estimated exposure
largeSubset of Chrome users not yet auto-updated — Massive Chrome install base, but auto-update limits exposure to the unpatched share.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
Memory corruption in FileSystem in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
In the news
2 storiesGoogle fixes 52 Chrome flaws, including four critical bugs
Stable builds move to 156.0.8078.73/.74 on Windows and Mac and 156.0.8078.73 on Linux, with no exploitation stated.
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