EUVD-2026-50773
GHSA-mr3q-6x9r-3w9m
Severity by source
Sources disagree (Medium–Critical)AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Network-delivered browser flaw needing no attacker privileges; victim must visit crafted page (UI:R); SOP bypass yields integrity impact with no data disclosure or service disruption.
vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Lifecycle Timeline
5DescriptionCVE.org
Insufficient policy enforcement in ServiceWorker in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to bypass same origin policy via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
ServiceWorker policy enforcement in Google Chrome prior to 151.0.7922.72 is insufficiently enforced, enabling a remote attacker to bypass the browser's same-origin policy (SOP) by delivering a crafted HTML page to a victim. Classified under CWE-284 (Improper Access Control), the flaw carries high integrity impact - cross-origin resource manipulation without data exfiltration - and is exploitable with no attacker privileges, though user interaction is mandatory. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the victim use a vulnerable version of Google Chrome (prior to 151.0.7922.72) and actively navigate to or be redirected to an attacker-controlled HTML page - mandatory user interaction (UI:R per CVSS). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 vector AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N scores 6.5 Medium. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker sends a phishing email containing a link to a crafted HTML page hosted on an attacker-controlled server. When the victim clicks the link and loads the page in a vulnerable Chrome instance, a malicious ServiceWorker is registered that exploits the insufficient policy enforcement to bypass same-origin policy restrictions, allowing the attacker to interact with or manipulate resources from a different origin within the victim's active browsing session. … |
| Remediation | Update Google Chrome to version 151.0.7922.72 or later, as confirmed by the vendor stable-channel advisory at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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