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Google Chrome EUVDEUVD-2026-74356

| CVE-2026-87556 MEDIUM
Missing Authorization (CWE-862)
2026-09-09 Chrome GHSA-877h-6rrv-wpjr
4.3
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
4.3 MEDIUM
AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
vuln.today AI
4.3 MEDIUM

Network-delivered via crafted HTML requiring user navigation (UI:R); no privileges needed; integrity-only partial impact consistent with access-restriction bypass without data exposure.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

6
Metadata Corrected
Sep 09, 2026 - 21:40 vuln.today
tag: Authentication Bypass removed
Analysis Generated
Sep 09, 2026 - 20:42 vuln.today
CVSS changed
Sep 09, 2026 - 20:37 NVD
4.3 (MEDIUM)
Patch available
Sep 09, 2026 - 01:03 EUVD
CVE Published
Sep 09, 2026 - 00:09 nvd
MEDIUM 4.3
CVE Published
Sep 09, 2026 - 00:09 cve.org
UNKNOWN (no severity yet)

DescriptionNVD

Missing authorization in Browser in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to bypass system access restrictions via a crafted HTML page. (Chromium security severity: Medium)

AnalysisAI

Missing authorization in Google Chrome's Browser component (prior to 153.0.8010.36) permits remote attackers to bypass system access restrictions via a crafted HTML page. The CWE-862 root cause - an absent authorization check rather than a broken one - means the Browser component fails to enforce expected access control boundaries when processing certain HTML content. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Delivery
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires a victim running Google Chrome prior to version 153.0.8010.36 to visit an attacker-controlled or compromised HTML page (UI:R from the CVSS vector). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The combined signal picture places this firmly in the medium-priority tier. … 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. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-74356 vulnerability details – vuln.today

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