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CVE-2026-78953 Details
Description
Missing authorization in SiteIsolation in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to bypass site isolation via a crafted PDF file. (Chromium security severity: Medium)
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Aug 27, 2026Exploitation: NoneAutomatable: NoTechnical Impact: Partial
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html | [email protected] | Release NotesVendor Advisory |
| https://issues.chromium.org/issues/516665605 | [email protected] | Permissions Required |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| google chrome | < 152.0.7977.65 |
CPE
Remediation
| |
Change History
6 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 19, 2026 | CVE Modified | CISA-ADP |
| Sep 17, 2026 | CVE Modified | CISA-ADP |
| Aug 28, 2026 | Initial Analysis | [email protected] |
| Aug 27, 2026 | CVE Modified | [email protected] |
| Aug 27, 2026 | CVE Modified | CISA-ADP |
| Aug 25, 2026 | New CVE Received | [email protected] |