CVE-2025-12445 — Authentication Bypass Using an Alternate Path or Channel in Google Chrome

CWE-288 — Authentication Bypass Using an Alternate Path or ChannelCWE-266 — Incorrect Privilege Assignment9 documents9 sources
Severity
6.5MEDIUMNVD
EPSS
0.0%
top 96.92%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Google ChromeChromiumPaloalto Prisma Browser
Timeline
PublishedNov 10
Latest updateNov 12

Description

Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an attacker who convinced a user to install a malicious extension to leak cross-origin data via a crafted Chrome Extension. (Chromium security severity: Low)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NExploitability: 3.9 | Impact: 2.5

Affected Packages4 packages

▶CVEListV5google/chrome142.0.7444.59 — 142.0.7444.59
▶NVDgoogle/chrome< 142.0.7444.59
▶Debianchromium/chromium< 142.0.7444.59-1~deb12u1+2

🔴Vulnerability Details

3
GHSA
GHSA-3x5x-62pf-8jpr: Policy bypass in Extensions in Google Chrome prior to 142↗2025-11-10
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CVEList
CVE-2025-12445: Policy bypass in Extensions in Google Chrome prior to 142↗2025-11-10
▶
OSV
CVE-2025-12445: Policy bypass in Extensions in Google Chrome prior to 142↗2025-11-10
▶

📋Vendor Advisories

5
Palo Alto
PAN-SA-2025-0018 Chromium and Prisma Browser: Monthly Vulnerability Update (November 2025)↗2025-11-12
▶
Chrome
Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2025-12445↗2025-11-11
▶
Red Hat
chromium-browser: Policy bypass in Extensions↗2025-11-10
▶
Microsoft
Chromium: CVE-2025-12445 Policy bypass in Extensions↗2025-10-14
▶
Debian
CVE-2025-12445: chromium - Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an a...↗2025
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CVE-2025-12445 — Google Chrome vulnerability | cvebase