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)
Published: 2026-08-25
Score: 4.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 28 Aug 2026 15:00:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

Thu, 27 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Title Remote Web Origin Policy Bypass via ReaderMode Input Validation Flaw

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

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 : Analyzed

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

Modified: 2026-08-28T14:41:16.430

Link: CVE-2026-78980

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-27T19:30:13Z

Weaknesses