EUVD-2026-65952
GHSA-fv55-2p8j-mhm4
Severity by source
Sources disagree (Medium–Critical)AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Requires active user installation of a malicious extension (UI:R); impact is confidentiality-only origin-policy bypass with no integrity or availability consequence.
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 leveraging social engineering to bypass web origin policy via a crafted Chrome extension. (Chromium security severity: Medium)
AnalysisAI
Incorrect authorization in Chrome's ServiceWorker component (CWE-863) allows remote unauthenticated attackers who can socially engineer a user into installing a crafted Chrome extension to bypass the web origin policy, resulting in limited cross-origin data exposure. All Chrome releases prior to 152.0.7977.65 are affected across platforms; a vendor patch is available. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two concrete prerequisites: (1) the target user must be running Google Chrome at a version prior to 152.0.7977.65, and (2) the attacker must successfully socially engineer the user into installing a crafted Chrome extension - a non-trivial step that Chrome may warn against for extensions sourced outside the Web Store. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.3 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N) captures the essential tension in this vulnerability: the attack is network-reachable with low complexity and requires no attacker privileges, but mandatory user interaction (UI:R) and a scope-unchanged impact cap significantly constrain real-world exploitability. … 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 | The primary remediation is to upgrade Google Chrome to version 152.0.7977.65 or later via the vendor stable channel update documented at http://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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