CVE-2025-12445
published 2025-11-10CVE-2025-12445: 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…
PriorityP433medium6.5CVSS 3.1
AVNACLPRNUINSUCLILAN
EPSS
0.14%
3.7th percentile
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)
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chromium | chromium | >= 0 < 142.0.7444.59-1~deb12u1 | 142.0.7444.59-1~deb12u1 |
| chromium | chromium | >= 0 < 142.0.7444.59-1~deb13u1 | 142.0.7444.59-1~deb13u1 |
| chromium | chromium | >= 0 < 142.0.7444.59-1 | 142.0.7444.59-1 |
| debian | chromium | < chromium 142.0.7444.59-1~deb12u1 (bookworm) | chromium 142.0.7444.59-1~deb12u1 (bookworm) |
| chrome | < 142.0.7444.59 | 142.0.7444.59 | |
| chrome | >= 142.0.7444.59 < 142.0.7444.59 | 142.0.7444.59 | |
| chrome_chrome | — | — | |
| msrc | microsoft_edge | — | — |
| paloalto | prisma_browser | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_redhat6.5MEDIUM
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Palo Alto
PAN-SA-2025-0018 Chromium and Prisma Browser: Monthly Vulnerability Update (November 2025)
vendor_paloalto·2025-11-12·CVSS 8.8
CVE-2025-12428 [HIGH] PAN-SA-2025-0018 Chromium and Prisma Browser: Monthly Vulnerability Update (November 2025)
PAN-SA-2025-0018 Chromium and Prisma Browser: Monthly Vulnerability Update (November 2025)
Palo Alto Networks incorporated the following Chromium security fixes into our products: https://chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.html CVE CVSS Summary CVE-2025-12428 Type Confusion in V8 CVE-2025-12429 Inappropriate implementation in V8 CVE-2025-12430 Object lifecycle issue in Media CVE-2025-12431 Inappropriate implementation in Extensions CVE-2025-12432 Race in V8 CVE-2025-12433 Inappropriate implementation in V8 CVE-2025-12036 Inappropriate implementation in V8 CVE-2025-12434 Race in Storage CVE-2025-12435 Incorrect security UI in Omnibox CVE-2025-12436 Policy bypass in Extensions CVE-2025-12437 Use after free in PageInfo CVE-2025-12438 Use after free in
Chrome
Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2025-12445
vendor_chrome·2025-11-11·CVSS 6.5
CVE-2025-12445 [MEDIUM] Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2025-12445
Stable Channel Update for ChromeOS / ChromeOS Flex
CVE-2025-12445
Red Hat
chromium-browser: Policy bypass in Extensions
vendor_redhat·2025-11-10·CVSS 6.5
CVE-2025-12445 [MEDIUM] CWE-266 chromium-browser: Policy bypass in Extensions
chromium-browser: Policy bypass in Extensions
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)
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.
Microsoft
Chromium: CVE-2025-12445 Policy bypass in Extensions
vendor_msrc·2025-10-14·CVSS 6.5
CVE-2025-12445 [MEDIUM] Chromium: CVE-2025-12445 Policy bypass in Extensions
Chromium: CVE-2025-12445 Policy bypass in Extensions
Description: This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
FAQ: What is the version information for this release?
Microsoft Edge Version
Date Released
Based on Chromium Version
142.0.3595.53
10/31/2025
142.0.7445.59/.60
FAQ: Why is this Chrome CVE included in the Security Update Guide?
The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable.
How can I see the version of the browser
Debian
CVE-2025-12445: chromium - Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an a...
vendor_debian·2025·CVSS 6.5
CVE-2025-12445 [MEDIUM] CVE-2025-12445: chromium - Policy bypass in Extensions in Google Chrome prior to 142.0.7444.59 allowed an a...
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)
Scope: local
bookworm: resolved (fixed in 142.0.7444.59-1~deb12u1)
bullseye: open
forky: resolved (fixed in 142.0.7444.59-1)
sid: resolved (fixed in 142.0.7444.59-1)
trixie: resolved (fixed in 142.0.7444.59-1~deb13u1)
GHSA
GHSA-3x5x-62pf-8jpr: Policy bypass in Extensions in Google Chrome prior to 142
ghsa_unreviewed·2025-11-10
CVE-2025-12445 [MEDIUM] CWE-288 GHSA-3x5x-62pf-8jpr: Policy bypass in Extensions in Google Chrome prior to 142
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)
OSV
CVE-2025-12445: Policy bypass in Extensions in Google Chrome prior to 142
osv·2025-11-10·CVSS 6.5
CVE-2025-12445 [MEDIUM] CVE-2025-12445: Policy bypass in Extensions in Google Chrome prior to 142
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)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2025-11-10
Published