CVE-2026-3939 — Improper Access Control in Google Chrome

CWE-284 — Improper Access Control9 documents9 sources
Severity
5.3MEDIUMNVD
EPSS
0.0%
top 92.33%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Google ChromeChromium
Timeline
PublishedMar 11
Latest updateMar 24

Description

Insufficient policy enforcement in PDF in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to bypass navigation restrictions via a crafted PDF file. (Chromium security severity: Low)

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NExploitability: 3.9 | Impact: 1.4

Affected Packages3 packages

▶CVEListV5google/chrome146.0.7680.71 — 146.0.7680.71
▶NVDgoogle/chrome< 146.0.7680.71
▶Debianchromium/chromium< 146.0.7680.71-1~deb12u1+2

🔴Vulnerability Details

3
GHSA
GHSA-frgx-w57m-9m62: Insufficient policy enforcement in PDF in Google Chrome prior to 146↗2026-03-12
▶
CVEList
CVE-2026-3939: Insufficient policy enforcement in PDF in Google Chrome prior to 146↗2026-03-11
▶
OSV
CVE-2026-3939: Insufficient policy enforcement in PDF in Google Chrome prior to 146↗2026-03-11
▶

📋Vendor Advisories

4
Chrome
Stable Channel Update for ChromeOS / ChromeOS Flex: CVE-2026-3939↗2026-03-24
▶
Microsoft
Chromium: CVE-2026-3939 Use after free in WebView↗2026-03-10
▶
Red Hat
chromium-browser: Insufficient policy enforcement in PDF↗2026-03-10
▶
Debian
CVE-2026-3939: chromium - Insufficient policy enforcement in PDF in Google Chrome prior to 146.0.7680.71 a...↗2026
▶

🕵️Threat Intelligence

1
Wiz
CVE-2026-3939 Impact, Exploitability, and Mitigation Steps | Wiz↗
▶
CVE-2026-3939 — Improper Access Control in Google | cvebase