CVE-2026-118331

Improper input validation in FileAPI in Google Chrome prior to 156.0.8078.73 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Critical)

Affected

Google · Chrome

CVSS v3.1 CISA-ADP

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.34% chance of exploitation in the next 30 days, 28th percentile

Published

2026-10-27

Updated

2026-10-29

Proof-of-concept exploits (1)

• malicious-artifacts/playwright-sandbox-researchRepo stars 1★ · pushed 2026-11-03 · snapshot
  1 file

  poc/attacker-page.html

CVE references

• https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_056249994…REFERENCE
• https://issues.chromium.org/issues/572193211REFERENCE

References

• CVE Record
• NVD entry

Related

• CVE-2026-118306