by Kastro
Paper/Archive/CVE-2026-9891

CVE-2026-9891

Google Chrome — Use after free in Extensions in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process…

EPSS 0.2%CVSS 9.0
critical.is priorityof 100
30
CVSS 9.0 (ADP)9.0 / 10 × 3027.0Not in CISA KEV+300.0EPSS percentile 15.8.158 × 203.2No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

Use after free in Extensions in Google Chrome prior to 148.0.7778.216 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted Chrome Extension. (Chromium security severity: Critical)

Affected

ProductAffectedFixed inSource
Chrome148.0.7778.216 – < 148.0.7778.216148.0.7778.216CNA

Scores by source

CISA ADP9.0CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: total

References

refchromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop_0877304591.htmlrefissues.chromium.org/issues/513508128