Use after free in Prerender in Google Chrome prior to 155.0.8059.84 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Critical)
Fix
Microsoft's update · Critical
- Release Notes — Microsoft Edge (Chromium-based) · build 155.0.4283.62
From the 2026-Oct release note of Microsoft's Security Update Guide, revised 2026-10-28.
Public exploits 1
- VABISMO/chrome2shell PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 1
- https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_01886704284.html Release Notes, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 5
- Cpes+1 CPE criteria (now 1)NVD modified 2026-10-19 19:28
- StatusAwaiting Analysis → AnalyzedNVD modified 2026-10-19 19:28
- StatusReceived → Awaiting AnalysisNVD modified 2026-10-16 14:48
- CVSS8.8 (v3.1, CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)NVD modified 2026-10-16 03:18
- First seenunscoredNVD modified 2026-10-15 22:19
Affected (CPE criteria) 1
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
References 2
- https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_01886704284.html Release Notes, Vendor Advisory
- https://issues.chromium.org/issues/568719351 Permissions Required