EUVD-2026-65878
GHSA-f9wh-fwvf-v533
Severity by source
Sources disagree (Medium–Critical)AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Crafted-page delivery requires active victim interaction; no attacker privileges needed; only limited cross-origin read with no integrity or availability impact confirmed.
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
Lifecycle Timeline
4DescriptionCVE.org
Incorrect authorization in ServiceWorker in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
ServiceWorker incorrect authorization in Google Chrome prior to 152.0.7977.65 enables remote attackers to bypass the web origin policy by inducing a victim to visit a crafted HTML page. The flaw (CWE-863) allows a ServiceWorker to access cross-origin resources it should be forbidden from reading, yielding a low confidentiality impact with no integrity or availability consequence. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the victim to actively visit a crafted HTML page in a Chrome version prior to 152.0.7977.65 - mandatory user interaction (UI:R per CVSS) is the primary limiting factor preventing automated or mass exploitation. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 4.3 (Medium) with vector AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N correctly characterizes a limited-impact flaw: while network-reachable with no attacker privilege requirement, exploitation demands active user interaction and yields only a low confidentiality breach with no scope change. … 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 | Vendor-released patch: Chrome 152.0.7977.65, available via the stable channel update documented at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-863 – Incorrect Authorization
View allSame technique Authentication Bypass
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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