EUVD-2026-74351
GHSA-cxvg-jqm2-2qpv
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Renderer compromise prerequisite justifies AC:H; cross-origin data access is constrained in scope (C:L) with no integrity or availability impact on the vulnerable system.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Information leak in WebMCP in Google Chrome prior to 153.0.8010.36 allowed a remote attacker who had compromised the renderer process to obtain cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Cross-origin data disclosure in Chrome's WebMCP component before 153.0.8010.36 enables a renderer-compromised attacker to exfiltrate cross-origin page data via a crafted HTML page. This is a second-stage vulnerability in a multi-step exploit chain - it does not enable initial access but amplifies the impact of a prior renderer compromise by breaking the same-origin boundary through the WebMCP interface. …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation has an explicit hard prerequisite: the attacker must have already compromised the Chrome renderer process through a separate vulnerability - this is stated directly in the description. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 3.1 (AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N) is an accurate representation of the constrained risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update Google Chrome to version 153.0.8010.36 or later, released via the Stable Channel in September 2026 (advisory: https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html). … Detailed patch versions, workarounds, and compensating controls in full report. |
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today