CVE-2026-87586Network attack vector

Sandbox memory disclosure via ANGLE bounds error

Published Sep 9, 2026 · Updated Sep 9, 2026

Out-of-bounds read in ANGLE in Google Chrome before 153.0.8010.36 allows remote attackers to read memory via crafted HTML. Public vendor material identifies ANGLE as the locus but does not disclose the affected function or the operation that fails to validate a memory boundary. A user must load the attacker-controlled page, after which the read crosses the browser sandbox boundary and exposes process memory; no write or code-execution impact is reported.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in ANGLE in Google Chrome before 153.0.8010.36 allows remote attackers to read memory via crafted HTML. Public vendor material identifies ANGLE as the locus but does not disclose the affected function or the operation that fails to validate a memory boundary. A user must load the attacker-controlled page, after which the read crosses the browser sandbox boundary and exposes process memory; no write or code-execution impact is reported.

The record

CVE
CVE-2026-87586
Published
Sep 9, 2026
Updated
Sep 9, 2026
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-125, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 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=153.0.8010.36 <153.0.8010.36

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=153.0.8010.36 <153.0.8010.36

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-125Out-of-bounds Read
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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