Medium [CVE-2026-84328] Web origin policy bypass due to missing authorization
This medium-severity Red Hat Linux advisory covers CVE-2026-84328.
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Summary
Missing authorization in FileSystem in Google Chrome prior to 152.0.7977.75 allowed a remote attacker who had compromised the renderer process to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium) By crafting a malicious HTML page, the attacker can circumvent security restrictions, potentially leading to unauthorized access or manipulation of data across different web origins.
Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory. Red Hat severity: Moderate — CVSS 5.9 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N).
Weakness: CWE-346.
- < 152.0.7977.75
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
Official advisory · high-confidence parse· fetched 1 hour ago·verify at source
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