CVE-2026-118331: Google Chrome · Improper Input Validation
Affects Google ChromeSource CVE Database V5
Not known to be exploited : upgrade to 156.0.8078.73 as a priority.
Data as of 27 Oct 2026, 23:42 UTC
Rated Critical by the CNA (Chrome) · CVSS not yet scored by NVD
- Patch
- Available – fixed in 156.0.8078.73
Exploitation evidence
Disclosed: evidence found.
CVE published 27 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Chrome and google/chrome to 156.0.8078.73.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GoogleChrome | Affected
| Fixed in
|
Googlegoogle/chromepkg:deb/google/chromeOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users and administrators should update Google Chrome to version 156.0.8078.73 or later to remediate this vulnerability. This is the official fix provided by Google.
Description
CVE-2026-118331 is a critical vulnerability in Google Chrome's FileAPI component prior to version 156.0.8078.73. It involves improper input validation that could allow a remote attacker to execute arbitrary code within the browser's sandbox by delivering a crafted HTML page. This flaw has been fixed in version 156.0.8078.73.