CVE-2026-1220Network attack vector

Unspecified impact via V8 race-induced type confusion

Published Jun 10, 2026 · Updated Jun 10, 2026

Race condition in V8 in Google Chrome before 144.0.7559.99 allows remote attackers to cause unspecified impact via crafted HTML. Google identifies the affected locus only as V8 and has not disclosed which shared state is raced or which operation applies the resulting wrong type. Exploitation requires a user to render attacker-controlled HTML; public details do not establish a browser-sandbox escape or a more specific consequence.

CVSS severity7.5
High
EPSS probability0.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in V8 in Google Chrome before 144.0.7559.99 allows remote attackers to cause unspecified impact via crafted HTML. Google identifies the affected locus only as V8 and has not disclosed which shared state is raced or which operation applies the resulting wrong type. Exploitation requires a user to render attacker-controlled HTML; public details do not establish a browser-sandbox escape or a more specific consequence.

The record

CVE
CVE-2026-1220
Published
Jun 10, 2026
Updated
Jun 10, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-362, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=144.0.7559.99 <144.0.7559.99

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Google Chromeversion=144.0.7559.99 <144.0.7559.99

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:H/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1203Exploitation for Client Execution

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

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Your stack

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