CVE-2026-6360Network attack vectorHinoki check available

Object corruption via FileSystem use-after-free

Published Apr 15, 2026 · Updated May 26, 2026

Use-after-free in FileSystem in Google Chrome before 147.0.7727.101 allows remote attackers to trigger object corruption via crafted HTML. Chrome's FileSystem component uses an object after its memory has been freed, but Google has not disclosed the affected function or lifetime error. Exploitation requires the browser to load attacker-controlled content; the public record establishes object corruption, not confirmed code execution or a sandbox escape.

CVSS severity8.8
High
EPSS probability0.31%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Get started

Summary

What happened

Use-after-free in FileSystem in Google Chrome before 147.0.7727.101 allows remote attackers to trigger object corruption via crafted HTML. Chrome's FileSystem component uses an object after its memory has been freed, but Google has not disclosed the affected function or lifetime error. Exploitation requires the browser to load attacker-controlled content; the public record establishes object corruption, not confirmed code execution or a sandbox escape.

The record

CVE
CVE-2026-6360
Published
Apr 15, 2026
Updated
May 26, 2026
Vendor
WebM Project
Product
Chrome
Classifications
CWE-416
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2026CVE publishedPublication date reported by the CVE source.
  2. May 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected version<147.0.7727.101

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WebM Project · Chrome<147.0.7727.101

Published CVSS scores

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

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Get started to see how Hinoki identifies affected software and validates exploitability in your environment.

Get started