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CVE-2026-11645

Published: Jun 8, 2026Updated: Jul 23, 2026 Sources: CVE List NVD BDUCWE-125
8.8HIGH
NVD MITRE
EPSS Score
2.2%
Top 18.7%
CISA KEV
Active Exploitation
Since Jun 9, 2026
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

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)

In plain language

AI Act now

CVE-2026-11645 is a serious Chrome browser bug that lets attackers run code after you simply visit a specially crafted web page; if you haven’t updated Chrome to 149.0.7827.103 or newer, this is something a typical small business should treat as urgent.

Executive summary

CVE-2026-11645 is an out-of-bounds read/write in the V8 JavaScript engine in Google Chrome (pre-149.0.7827.103) that enables a remote attacker to achieve arbitrary code execution inside Chrome’s sandbox via a crafted HTML page; it is listed in CISA KEV with real-world exploitation reported.

If affected, business impact
Malicious code execution in browserSandbox escape attemptsAccount and session theft riskBusiness data compromise via browsing

What to do now

  1. Check your Chrome version on each affected computer (Chrome → Help → About Google Chrome) and note any versions earlier than 149.0.7827.103.
  2. Update Google Chrome to 149.0.7827.103 (or later) on every device used for web browsing.
  3. If you can’t update immediately, restrict web browsing to a controlled allowlist (or use a managed browser environment) and block access to untrusted websites until updates are applied.
  4. After updating, verify the version number again and ask IT to review browser crash/error spikes and suspicious activity around the time of browsing by staff.
Patch / advisory Usually a quick update

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-125CWE-787

Affected Products

Google Inc
commercial·USaka google, google llc
Google ChromeOn-premDesktop App
Consumer Software / browser
and 2 more affected products View all →

Exploitability

CISA Known Exploited Vulnerability
Added to KEV:Jun 9, 2026
Remediation due:Jun 23, 2026

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Official Patch Available
Is your org exposed to CVE-2026-11645?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

3 techniques
Collection
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html
chromereleases.googleblog.com
https://www.cisa.gov/sites/default/files/csv/known_exploited_vulnerabilities.csv
cisa.gov
https://issues.chromium.org/issues/506689381
issues.chromium.org
and 1 more references View all →
News mentions
15
See all →

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