CVE-2026-11220: Google Chrome · Insufficient Validation of Untrusted Input
Affects Google ChromeSource CVE Database V5
Not known to be exploited · CVSS 6.5 Medium : upgrade to 149.0.7827.53 when convenient.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 149.0.7827.53
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 4 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Upgrade Chrome and google/chrome to 149.0.7827.53.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| GoogleChrome | Affected
| Fixed in
|
Googlegoogle/chromepkg:deb/google/chromeOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until an official fix is confirmed, users should follow standard security best practices to limit renderer process compromise. No specific temporary mitigations are detailed by the vendor.
Description
CVE-2026-11220 is a medium severity vulnerability in Google Chrome prior to version 149.0.7827.53. It involves insufficient validation of untrusted input in the navigation component, which could allow a remote attacker who has compromised the renderer process to bypass site isolation using a crafted HTML page. This vulnerability does not impact confidentiality but can lead to integrity issues. No known exploits are reported in the wild. A vendor advisory is available but does not explicitly confirm patch status or remediation details.