CVE-2026-11255: Google Chrome · Insufficient Validation of Untrusted Input
Affects Google ChromeSource CVE Database V5
Not known to be exploited · CVSS 7.5 High : upgrade to 149.0.7827.53 soon.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 18% 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:N/S:U/C:H/I:N/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
Since no explicit remediation level or patch link is provided, users and administrators should monitor the official Chrome release notes and update to the fixed version once available. No additional mitigation recommendations are provided in the advisory.
Description
CVE-2026-11255 is a vulnerability in Google Chrome's Storage Access API prior to version 149.0.7827.53. It involves insufficient validation of untrusted input, which could allow a remote attacker who has compromised the renderer process to leak cross-origin data via a crafted HTML page. The vulnerability has a high severity rating with a CVSS score of 7.5.