CVE-2026-78903
28Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 3.1epss 0.3%
from disclosure to weapon5 days
Published on NVDAug 25
1st PoC+5d
exploitation probability
0.3%top 81% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
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)
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected products
Google · Chromepublic PoCs found — 1
githubgithub.com/vxssroott/CVE-2026-78903-SWIFT-Kick-to-the-Creds★ 1⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.