EUVD-2026-40740
GHSA-f2vr-9qrm-hv28
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Renderer-process-compromise prerequisite explicitly stated in description elevates effective complexity to AC:H; remaining metrics align with the vendor-provided vector.
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Insufficient policy enforcement in Extensions in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: Low)
AnalysisAI
Cross-origin data leakage in Google Chrome's Extensions subsystem (versions prior to 150.0.7871.47) enables a remote attacker - who has first achieved renderer process compromise - to bypass same-origin policy enforcement and read cross-origin data via a specially crafted HTML page. The flaw is classified as CWE-346 (Origin Validation Error) and rated Low severity by the Chromium security team. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two explicitly stated chained conditions: (1) the attacker must have already achieved compromise of the Chrome renderer process through a separate, preceding vulnerability - a significant and non-trivial prerequisite - and (2) the victim must load or be served a crafted HTML page after renderer compromise is established. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Real-world risk is lower than the CVSS 4.3 Medium score suggests. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has separately compromised the Chrome renderer process - for example, via an unrelated memory corruption vulnerability triggered by visiting a malicious webpage - then loads a crafted HTML page that exploits the insufficient Extensions policy enforcement to read data from a cross-origin context, such as session cookies or page content from a banking or email origin open in another tab. No public exploit code has been identified at time of analysis, and the renderer-compromise prerequisite makes opportunistic exploitation unlikely. |
| Remediation | Upgrade Google Chrome to version 150.0.7871.47 or later, which contains the vendor-released fix per the Chrome Releases advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-346 – Origin Validation Error
View allSame technique Information Disclosure
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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