CVE-2026-78903
Last modified
CVE-2026-78903 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. Incomplete cleanup 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 HTML page. (Chromium security severity: Medium). EPSS estimates a 0.28% chance of exploitation in the next 30 days.
Description
Incomplete cleanup 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 HTML page. (Chromium security severity: Medium)
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Chrome | < 152.0.7977.65 |
References
- https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.htmlRelease Notes, Vendor Advisory
- https://issues.chromium.org/issues/518078552Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
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