Improper input validation in ReaderMode in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass web origin policy into a privileged page via a crafted HTML page. (Chromium security severity: Low)

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00256.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
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Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html cve-icon cve-icon
https://issues.chromium.org/issues/523237735 cve-icon cve-icon
History

Thu, 27 Aug 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 25 Aug 2026 22:45:00 +0000

Type Values Removed Values Added
Title Remote Web Origin Policy Bypass via ReaderMode Input Validation Flaw
First Time appeared Google
Google chrome
Vendors & Products Google
Google chrome

Tue, 25 Aug 2026 20:30:00 +0000

Type Values Removed Values Added
Description Improper input validation in ReaderMode in Google Chrome prior to 152.0.7977.65 allowed a remote attacker leveraging social engineering to bypass web origin policy into a privileged page via a crafted HTML page. (Chromium security severity: Low)
Weaknesses CWE-20
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Chrome

Published:

Updated: 2026-08-27T15:18:26.804Z

Reserved: 2026-08-25T06:06:36.765Z

Link: CVE-2026-78980

cve-icon Vulnrichment

Updated: 2026-08-27T15:16:34.879Z

cve-icon NVD

Status : Undergoing Analysis

Published: 2026-08-25T21:17:54.427

Modified: 2026-08-27T17:20:44.683

Link: CVE-2026-78980

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-25T22:30:17Z

Weaknesses