EUVD-2026-40695
GHSA-c6cq-7fvc-v2jc
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Network-delivered via crafted HTML requiring active user visit; no privileges needed; integrity bypass is high but no confidentiality or availability impact applies.
Primary rating from Vendor (google).
CVSS VectorVendor: google
Lifecycle Timeline
3DescriptionCVE.org
Insufficient policy enforcement in PermissionsPolicy in Google Chrome prior to 150.0.7871.47 allowed a remote attacker to bypass navigation restrictions via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Insufficient PermissionsPolicy enforcement in Google Chrome prior to 150.0.7871.47 enables remote attackers to bypass navigation restrictions by luring a user to a crafted HTML page. The integrity impact is rated High (CVSS I:H) because an attacker can circumvent declarative browser navigation controls, potentially redirecting victims to unintended origins or overriding policy-enforced browsing constraints. No public exploit code exists and SSVC signals exploitation as none, placing this in a lower-priority patch tier despite the medium-high CVSS score.
Technical ContextAI
Google Chrome's Permissions Policy (formerly Feature Policy, CWE-602: Client-Side Enforcement of Server-Side Security) is a web platform mechanism allowing servers to declare which browser capabilities - camera, geolocation, navigation delegation - are permitted in a document and its sub-frames. CWE-602 describes the root cause class: security logic that should be enforced server-side or in a trusted context is instead enforced client-side and can be bypassed by a malicious actor controlling the client-side input. In this case, Chrome's PermissionsPolicy evaluation is insufficiently strict, allowing a specially crafted HTML page to supply policy directives or frame structures that the browser incorrectly validates, thereby bypassing navigation restrictions that a legitimate site or its headers intended to enforce. Affected product per CPE is cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*, covering all platforms (Windows, macOS, Linux, ChromeOS) running Chrome versions below 150.0.7871.47.
RemediationAI
Update Google Chrome to version 150.0.7871.47 or later via the browser's built-in updater (chrome://settings/help) or organizational software deployment tooling. The vendor advisory is available at http://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html. For environments where immediate browser updates are not possible, administrators can restrict access to untrusted external web content via network-level URL filtering or proxy controls to reduce exposure to crafted HTML pages; however, this has operational trade-offs for users requiring general web access. Organizations using SUSE Linux-packaged Chromium should monitor SUSE security advisories for a downstream-patched package. No workaround fully substitutes for the upstream patch since the flaw is in Chrome's internal PermissionsPolicy evaluation logic.
Same technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: Moderate| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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