EUVD-2026-74531
GHSA-mp46-jm42-g974
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Network-delivered via social engineering (AV:N, PR:N), user must install extension (UI:R), incomplete cleanup yields integrity bypass with no confidentiality or availability impact and no scope change.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
5DescriptionCVE.org
Incomplete cleanup in Extensions in Google Chrome prior to 153.0.8010.36 allowed a remote attacker leveraging social engineering to bypass system access restrictions via a crafted Chrome extension. (Chromium security severity: Medium)
AnalysisAI
Incomplete cleanup in Google Chrome's Extensions subsystem (versions prior to 153.0.8010.36) allows a remote attacker to bypass system access restrictions by delivering a crafted Chrome extension through social engineering. The flaw (CWE-459) leaves residual access state after extension processing, which a specially crafted extension exploits to obtain capabilities beyond its declared permissions - yielding a high integrity impact with no confidentiality or availability consequence. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to be socially engineered into installing a specially crafted Chrome extension - the CVSS UI:R metric confirms user interaction is mandatory. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 6.5 score (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N) captures the key tension here: the attack is network-reachable and requires no attacker authentication, but user interaction is mandatory - the victim must be socially engineered into installing a crafted extension. … 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, which contains the complete fix for the Extensions cleanup flaw. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-459 – Incomplete Cleanup
View allSame technique Authentication Bypass
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External POC / Exploit Code
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