EUVD-2026-65893
GHSA-q376-px3p-wxv7
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Network-delivered via crafted traffic (AV:N/AC:L); victim interaction required (UI:R); no attacker auth needed; confidentiality-only impact with no integrity or availability effect.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Lifecycle Timeline
4DescriptionCVE.org
Incorrect authorization in TabGroups in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to potentially leak sensitive information via crafted network traffic. (Chromium security severity: Medium)
AnalysisAI
Incorrect authorization in the TabGroups feature of Google Chrome prior to 152.0.7977.65 allows a remote attacker to leak sensitive browser information by serving crafted network traffic to a victim user. The flaw is classified CWE-863 (Incorrect Authorization), meaning the browser fails to properly enforce access control within tab group contexts, and was rated Medium severity by the Chromium security team. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | User interaction is required (CVSS UI:R) - the victim must navigate to or load attacker-controlled content in Chrome while the crafted network traffic is delivered. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 score of 6.5 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N) reflects a Medium-severity information disclosure with no authentication barrier for the attacker but requiring victim user interaction, which limits automatable exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a malicious web page or network endpoint that serves specially crafted HTTP traffic targeting the TabGroups authorization flaw. When a victim user with an affected Chrome version visits the attacker-controlled resource, the crafted traffic triggers the incorrect authorization check within the TabGroups component, causing Chrome to expose sensitive information - such as tab URLs, session identifiers, or page content from other tab groups - back to the attacker-controlled origin. … |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later, which contains the vendor-released patch per the stable channel advisory 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
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External POC / Exploit Code
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