CVE-2018-6103

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-12-04 · updated 2026-06-17

Description

A stagnant permission prompt in Prompts in Google Chrome prior to 66.0.3359.117 allowed a remote attacker to bypass permission policy via a crafted HTML page.

Affected products

Debian Linux: 8.0, 9.0
Google Chrome: before 66.0.3359.117 — fixed in 66.0.3359.117
RedHat Linux Desktop: 6.0
RedHat Linux Server: 6.0
RedHat Linux Workstation: 6.0

How to fix

Upgrade to a fixed version: Google Chrome 66.0.3359.117. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/103917
https://access.redhat.com/errata/RHSA-2018:1195
https://chromereleases.googleblog.com/2018/04/stable-channel-update-for-desktop.html
https://crbug.com/816033
https://security.gentoo.org/glsa/201804-22
https://www.debian.org/security/2018/dsa-4182
http://www.securityfocus.com/bid/103917
https://access.redhat.com/errata/RHSA-2018:1195
https://chromereleases.googleblog.com/2018/04/stable-channel-update-for-desktop.html
https://crbug.com/816033
https://security.gentoo.org/glsa/201804-22
https://www.debian.org/security/2018/dsa-4182

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