Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-reachable crafted page needs no auth (PR:N) but a user visit (UI:R); renderer code execution stays in-sandbox (S:U) with high C/I/A within that process.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Use after free in V8 in Google Chrome prior to 150.0.7871.46 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Use-after-free in Chrome's V8 JavaScript engine (versions before 150.0.7871.46) lets a remote attacker achieve arbitrary code execution inside the renderer sandbox by luring a victim to a crafted HTML page. Chromium rated this Medium severity, but the CVSS 8.8 reflects high confidentiality, integrity, and availability impact requiring only a single user click; there is no public exploit identified at time of analysis and CISA's SSVC framework records no known exploitation. Because scope is unchanged (S:U), code execution is confined to the sandbox and does not by itself constitute a full host compromise.
Technical ContextAI
The flaw is in V8, the C++ engine that compiles and executes JavaScript and WebAssembly in Chrome and all Chromium-derived browsers. CWE-416 (Use After Free) means the engine continues to reference a heap object after it has been freed - typically through optimizer/garbage-collector lifetime bugs - allowing an attacker who controls subsequent heap allocations to reshape the freed memory and hijack execution. The CPE cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:* confirms the affected product is the Google Chrome application. Because V8 runs within Chrome's multi-process sandbox, this primitive yields code execution in the renderer process; a separate sandbox-escape bug would be needed to reach the host, consistent with the description's phrasing 'inside a sandbox' and the S:U (scope unchanged) metric.
RemediationAI
Vendor-released patch: 150.0.7871.46 - update Chrome to 150.0.7871.46 or later via the Stable channel and restart the browser to load the new V8 build, per the Chrome release advisory (https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html). In managed environments, push the update through your browser management policy (e.g., enterprise auto-update) and confirm rollout, since the fix only applies after a restart. Where immediate patching is not possible, the practical compensating control is to reduce exposure to attacker-controlled pages - enforce Chrome's Site Isolation and sandbox (do not launch with --no-sandbox), and restrict browsing of untrusted sites; there is no feature toggle that disables V8 itself, so disabling JavaScript for untrusted sites via policy is the only content-level mitigation and it will break most modern web applications. Users of Chromium-based browsers should apply their vendor's build incorporating the equivalent V8 fix.
Same weakness CWE-416 – Use After Free
View allVendor StatusVendor
SUSE
Severity: Important| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-41204
GHSA-x56g-fv8q-3mv6