{"id":"CVE-2026-78903","title":"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","summary":"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)","severity":"low","cvss":3.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N","cvssSource":"adp","cwe":["CWE-459"],"vendor":"Google","product":"Chrome","affected":["Chrome >= 152.0.7977.65 < 152.0.7977.65"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-27T19:03:00.526489Z"},"exploitAvailable":true,"published":"2026-08-25","updated":"2026-09-17","sourceUpdated":"2026-09-17T18:48:56.708Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-78903","references":[{"url":"https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html"},{"url":"https://issues.chromium.org/issues/518078552"}],"tags":["cve.org","exploit-available"],"epss":0.00268,"epssPercentile":0.19174,"exploits":{"github":1,"githubRepos":["https://github.com/vxssroott/CVE-2026-78903-SWIFT-Kick-to-the-Creds"],"checkedAt":"2026-09-24T07:53:18.088Z"},"ingestedAt":"2026-09-17T19:26:25.340Z","slug":"CVE-2026-78903","body":"## Overview\n\nIncomplete 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)\n\n## Affected\n\n- `Chrome >= 152.0.7977.65 < 152.0.7977.65`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":29,"depthScoreParts":{"impact":17.1,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}