EUVD-2026-66059
GHSA-7px3-33cg-xcpm
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Network-delivered via crafted HTML with no auth required, but passive user visit mandatory; impact strictly limited to integrity with no confidentiality or availability loss.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Lifecycle Timeline
4DescriptionCVE.org
Improper input validation in ServiceWorker in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Low)
AnalysisAI
ServiceWorker improper input validation in Google Chrome prior to 152.0.7977.65 enables a remote attacker to bypass system access restrictions by directing a user to a crafted HTML page. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N) confirms no authentication is required from the attacker but user interaction is necessary, limiting the scope of practical exploitation. …
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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 152.0.7977.65 and to visit a crafted HTML page controlled by the attacker (UI:R per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS base score of 4.3 (Medium) reflects a network-accessible (AV:N), low-complexity (AC:L), unauthenticated (PR:N) attack that requires user interaction (UI:R) and yields only integrity impact (I:L) with no confidentiality or availability loss (C:N/A:N). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker registers a malicious website and crafts an HTML page that exploits the ServiceWorker input validation flaw to bypass a system access restriction. The victim is directed to the page via a phishing link or malvertising redirect, triggering the ServiceWorker to process the malicious input upon page load. … |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later, which includes the vendor-released patch for this flaw. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-20 – Improper Input Validation
View allSame technique Authentication Bypass
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External POC / Exploit Code
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