EUVD-2026-74312
GHSA-rqr3-v6x2-j8pq
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Social engineering to install a crafted extension requires explicit user action (UI:R); impact is bounded to partial cross-origin data disclosure (C:L) with no integrity or availability effect.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
4DescriptionCVE.org
Information leak in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to obtain cross-origin data via a crafted Chrome extension. (Chromium security severity: Medium)
AnalysisAI
Cross-origin data disclosure in Google Chrome's Extensions subsystem before version 153.0.8010.36 allows a remote attacker to obtain data from origins other than those the victim is currently browsing, contingent on successfully social-engineering the victim into installing a crafted malicious extension. The Chromium security team rated this Medium severity, consistent with the CVSS 4.3 score, and the EPSS probability of 0.23% confirms minimal current exploitation interest. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to be running Google Chrome prior to version 153.0.8010.36 and to be successfully social-engineered into installing a crafted malicious Chrome extension - a deliberate non-default user action that triggers Chrome's extension permission consent dialog. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 4.3 (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N) accurately reflects a moderate, bounded information-disclosure risk: the attack is network-reachable and requires no attacker privileges, but the mandatory user-interaction prerequisite (social engineering to install a crafted extension) substantially reduces realistic exploitability compared to a true zero-interaction flaw. … 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 | Upgrade Google Chrome to version 153.0.8010.36 or later, the vendor-released patch confirmed via the Chrome stable channel release blog at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0808145027.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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