CVE-2026-78953
Low
No strong exploitation signal.
CVSS base
—
EPSS — probability of exploitation (30 days)
0.3%
22.8th percentile
CISA KEV
Not listed
Weakness / dates
CWE-862
Published 2026-08-25 · modified 2026-09-17
Timeline
- 2026-08-25 — Published (NVD)
- 2026-09-17 — Last modified (NVD)
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)