CVE-2025-12909

Publication date 8 November 2025

Last updated 12 November 2025


Ubuntu priority

Cvss 3 Severity Score

5.3 · Medium

Score breakdown

Description

Insufficient policy enforcement in Devtools in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to leak cross-origin data via Devtools. (Chromium security severity: Low)

Read the notes from the security team

Status

Package Ubuntu Release Status
chromium-browser 25.10 questing
Not affected
25.04 plucky
Not affected
24.04 LTS noble
Not affected
22.04 LTS jammy
Not affected

Notes


alexmurray

The Debian chromium source package is called chromium-browser in Ubuntu


mdeslaur

starting with Ubuntu 19.10, the chromium-browser package is just a script that installs the Chromium snap

Severity score breakdown

Parameter Value
Base score 5.3 · Medium
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality Low
Integrity impact None
Availability impact None
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N