CVE-2026-15130Network attack vector

Cross-site data disclosure via isolation bypass

Published Jul 8, 2026 · Updated Jul 8, 2026

Insufficient policy enforcement in Google Chrome Navigation before 150.0.7871.115 allows remote attackers to bypass site isolation via crafted HTML. Public sources identify the Navigation component but do not disclose which policy check is omitted or how the crafted page defeats the isolation boundary. Successful exploitation requires a user to open attacker-controlled HTML and permits cross-site data exposure; no data modification or service interruption is reported.

CVSS severity4.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insufficient policy enforcement in Google Chrome Navigation before 150.0.7871.115 allows remote attackers to bypass site isolation via crafted HTML. Public sources identify the Navigation component but do not disclose which policy check is omitted or how the crafted page defeats the isolation boundary. Successful exploitation requires a user to open attacker-controlled HTML and permits cross-site data exposure; no data modification or service interruption is reported.

The record

CVE
CVE-2026-15130
Published
Jul 8, 2026
Updated
Jul 8, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-602, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 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=150.0.7871.115 <150.0.7871.115

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Google Chromeversion=150.0.7871.115 <150.0.7871.115

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/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 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-602Client-Side Enforcement of Server-Side Security
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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