CVE-2026-79258Network attack vector

Cross-origin data disclosure via incorrect WebXR authorization

Published Aug 25, 2026 · Updated Aug 25, 2026

Incorrect authorization in Google Chrome WebXR before 152.0.7977.65 allows remote attackers to obtain cross-origin data via crafted HTML. Google identifies the locus as WebXR but has not published the specific authorization decision or code path that mishandles the cross-origin request. Exploitation requires social engineering that causes user interaction with the crafted page, and the reported consequence is data disclosure only.

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

What happened

Incorrect authorization in Google Chrome WebXR before 152.0.7977.65 allows remote attackers to obtain cross-origin data via crafted HTML. Google identifies the locus as WebXR but has not published the specific authorization decision or code path that mishandles the cross-origin request. Exploitation requires social engineering that causes user interaction with the crafted page, and the reported consequence is data disclosure only.

The record

CVE
CVE-2026-79258
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-863, T1204
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 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=152.0.7977.65 <152.0.7977.65

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=152.0.7977.65 <152.0.7977.65

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-863Incorrect Authorization
T1204User Execution

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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