CVE-2026-14012Network attack vector

Process-memory disclosure through CSS side channel

Published Jun 30, 2026 · Updated Jun 30, 2026

Side-channel information leakage in CSS in Google Chrome before 150.0.7871.47 allows remote attackers to read process memory via crafted HTML. Google has not published the CSS operation or process-memory access pattern that produces the observable side channel; the linked Chromium issue is access-restricted. Exploitation requires a user to open crafted HTML, and the published impact is limited to disclosure of potentially sensitive process-memory information.

CVSS severity5.3
Medium
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Side-channel information leakage in CSS in Google Chrome before 150.0.7871.47 allows remote attackers to read process memory via crafted HTML. Google has not published the CSS operation or process-memory access pattern that produces the observable side channel; the linked Chromium issue is access-restricted. Exploitation requires a user to open crafted HTML, and the published impact is limited to disclosure of potentially sensitive process-memory information.

The record

CVE
CVE-2026-14012
Published
Jun 30, 2026
Updated
Jun 30, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-1300, T1189
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

5.3CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

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-1300Improper Protection of Physical Side Channels
T1189Drive-by Compromise

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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