CVE-2026-15901Network attack vector

Heap corruption via Network use-after-free

Published Jul 20, 2026 · Updated Jul 20, 2026

Use after free in Google Chrome's Network component before 150.0.7871.128 allows remote attackers to trigger heap corruption via crafted HTML. Google has not disclosed the affected object or the lifetime operation that leaves it reachable after release in the Network component. A victim must open the crafted page; public materials do not state whether exploitation escapes Chrome's sandbox or gains code execution.

CVSS severity9.6
Critical
EPSS probability0.44%
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's Network component before 150.0.7871.128 allows remote attackers to trigger heap corruption via crafted HTML. Google has not disclosed the affected object or the lifetime operation that leaves it reachable after release in the Network component. A victim must open the crafted page; public materials do not state whether exploitation escapes Chrome's sandbox or gains code execution.

The record

CVE
CVE-2026-15901
Published
Jul 20, 2026
Updated
Jul 20, 2026
Vendor
Go standard library
Product
Google Chrome
Classifications
CWE-416, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 20, 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=150.0.7871.128 <150.0.7871.128

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Go standard library · Google Chromeversion=150.0.7871.128 <150.0.7871.128

Published CVSS scores

9.6CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/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-416Use After Free
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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