CVE-2026-6358Network attack vectorHinoki check available

Out-of-bounds memory read via XR use-after-free

Published Apr 15, 2026 · Updated May 27, 2026

Use-after-free in XR in Google Chrome on Android before 147.0.7727.101 allows remote attackers to read out-of-bounds memory via crafted HTML. Google has not disclosed which XR object is freed prematurely or which operation later accesses it. A user must load the crafted page; the published description establishes a memory read, not code execution.

CVSS severity8.8
High
EPSS probability0.34%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Use-after-free in XR in Google Chrome on Android before 147.0.7727.101 allows remote attackers to read out-of-bounds memory via crafted HTML. Google has not disclosed which XR object is freed prematurely or which operation later accesses it. A user must load the crafted page; the published description establishes a memory read, not code execution.

The record

CVE
CVE-2026-6358
Published
Apr 15, 2026
Updated
May 27, 2026
Vendor
WebM Project
Product
Chrome
Classifications
CWE-416
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2026CVE publishedPublication date reported by the CVE source.
  2. May 27, 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 version<147.0.7727.101

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WebM Project · Chrome<147.0.7727.101

Published CVSS scores

8.8CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/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.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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