VIR Vulnerability Intelligence Relay

CVE-2026-9891

critical
Published 2026-05-28 · Modified 2026-05-29
💬 Discuss on Community ✚ Propose mitigation
CVSS v3
9.0
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4 NEW
—
not yet in upstream
VIR risk
9.0

Description

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)

Predictions

Exploit likelihood
93%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact
OSVersionStatusFixed in
debian debianbookwormaffected
debian debianbullseyeaffected
debian debianforkyaffected
debian debiansidaffected
debian debiantrixieaffected
macos macos-not-affected
linux linux-kernel-not-affected

Application impact
VendorProductVersionsFixed
gcp googlechrome{"endExcluding":"148.0.7778.216"}148.0.7778.216
gcp googlechrome{"endExcluding":"148.0.7778.215"}148.0.7778.215

References

CWEs

CWE-416

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.