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VulnerabilityPublished

CVE-2026-17781: Google Chrome · Inappropriate Implementation

Affects Google ChromeSource CVE Database V5

0

Not known to be exploited · CVSS 4.3 Medium : upgrade to 151.0.7922.72 when convenient.

Data as of 28 Oct 2026, 05:11 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 8% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 151.0.7922.72
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Jul 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 26 Oct 2026.

What to do

Upgrade Google Chrome to 151.0.7922.72.

Affected software

ProductAffectedFixed in
GoogleChromeAffected
  • >=151.0.7922.72 <151.0.7922.72
Fixed in
  • 151.0.7922.72

AI-suggested

Google has released Chrome version 151.0.7922.72 which addresses this vulnerability. Users and administrators should update to this version or later to mitigate the risk. No additional temporary mitigations or workarounds are indicated in the vendor advisory.

Description

A vulnerability in Google Chrome prior to version 151.0.7922.72 allows an attacker to leak cross-origin data by convincing a user to install a malicious extension. The issue stems from an inappropriate implementation in Chrome Extensions. The vulnerability has a medium severity rating and a CVSS score of 4.3.

References

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