CVE-2026-14027Network attack vector

Heap corruption via SignIn use-after-free

Published Jun 30, 2026 · Updated Jun 30, 2026

Use after free in Google Chrome SignIn before 150.0.7871.47 allows remote attackers to trigger heap corruption via crafted HTML. The public record identifies the SignIn component but does not disclose which object is freed or which later operation dereferences it. A user must open the crafted page and perform specific UI gestures; exploitation corrupts memory in the browser process, while sandbox escape is not established.

CVSS severityUnavailable
Unscored
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use after free in Google Chrome SignIn before 150.0.7871.47 allows remote attackers to trigger heap corruption via crafted HTML. The public record identifies the SignIn component but does not disclose which object is freed or which later operation dereferences it. A user must open the crafted page and perform specific UI gestures; exploitation corrupts memory in the browser process, while sandbox escape is not established.

The record

CVE
CVE-2026-14027
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 30, 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=150.0.7871.47 <150.0.7871.47

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Google Chromeversion=150.0.7871.47 <150.0.7871.47

Published CVSS scores

No CVSS assessment is available in this record.

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 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
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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