EUVD-2026-40577
GHSA-86ph-mmh8-99jx
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Kept AV:N/AC:H/UI:R per Chromium scoring convention; PR:N reflects web-content origin though a renderer foothold is required, and sandbox escape yields full C/I/A impact within an unchanged scope.
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Insufficient validation of untrusted input in Extensions in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to perform privilege escalation via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Privilege escalation in Google Chrome's Extensions component (versions prior to 150.0.7871.47) lets a remote attacker who has already compromised the renderer process break out via a crafted HTML page. Rated Medium by Chromium and CVSS 7.5, it stems from insufficient validation of untrusted input (CWE-20) and requires user interaction plus a pre-existing renderer foothold. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the attacker has ALREADY compromised the Chrome renderer process - this is the explicit, gating precondition named in the description, making the bug a sandbox-escape/privilege-escalation stage rather than an initial-access vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals skew toward lower real-world urgency than the 7.5 base score suggests. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker first compromises the Chrome renderer process (for example by chaining a separate renderer RCE bug) after luring a victim to a malicious site. They then serve a crafted HTML page that supplies malformed input to the Extensions component, exploiting the input-validation gap to escalate out of the sandboxed renderer into a higher-privileged browser context. … |
| Remediation | Vendor-released patch: 150.0.7871.47. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory Chrome versions deployed across the organization and identify systems with recent renderer-level compromises or suspicious extension activity. …
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Same weakness CWE-20 – Improper Input Validation
View allSame technique Privilege Escalation
View allVendor StatusVendor
SUSE
Severity: Important| 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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