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CVE-2026-11309VulnerabilityPublished

CVE-2026-11309: Google Chrome · Insufficient policy enforcement

Affects Google ChromeSource CVE Database V5

0

Not known to be exploited · CVSS 4.3 Medium : upgrade to 149.0.7827.53 when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
4.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 2% 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:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 2026-10-26.

What to do

Upgrade Google Chrome to 149.0.7827.53.

Affected software

ProductAffectedFixed in
GoogleChromeAffected
  • >=149.0.7827.53 <149.0.7827.53
Fixed in
  • 149.0.7827.53

AI-suggested

Users should update to version 149.0.7827.53 or later once confirmed patched. Until then, exercise caution with untrusted web content that could exploit UI spoofing.

Description

CVE-2026-11309 is a vulnerability in Google Chrome prior to version 149.0.7827.53 involving insufficient policy enforcement in the History component. This flaw allows a remote attacker to perform UI spoofing via a crafted HTML page. The vulnerability has a CVSS score of 4.3, indicating medium severity, and does not impact confidentiality or availability but can affect integrity through UI spoofing.

References

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