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Google Chrome CVE-2026-91729

| EUVDEUVD-2026-79980 CRITICAL
Use After Free (CWE-416)
2026-09-15 chrome-cve-admin@google.com GHSA-695q-prgq-m88h
9.6
CVSS 3.1 · Vendor: google
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Severity by source

Vendor (google) PRIMARY
9.6 CRITICAL
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
vuln.today AI
9.6 CRITICAL

Remote crafted page needs no privileges (PR:N) but does need the user to visit it (UI:R); the sandbox escape is a scope change (S:C) yielding full host code execution (C/I/A:H).

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

Primary rating from Vendor (google).

CVSS VectorVendor: google

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

Lifecycle Timeline

5
Metadata Corrected
Sep 16, 2026 - 11:40 vuln.today
tag: Chrome added
Analysis Generated
Sep 16, 2026 - 11:23 vuln.today
CVSS changed
Sep 16, 2026 - 11:22 NVD
9.6 (CRITICAL)
CVE Published
Sep 15, 2026 - 21:16 cve.org
CRITICAL 9.6
CVE Published
Sep 15, 2026 - 21:16 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

Use after free in DigitalCredentials in Google Chrome prior to 153.0.8010.47 allowed a remote attacker leveraging social engineering to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

AnalysisAI

Use-after-free in Google Chrome's DigitalCredentials component lets a remote, unauthenticated attacker execute arbitrary code outside the browser sandbox when a victim is socially engineered into loading a crafted HTML page, affecting all Chrome builds prior to 153.0.8010.47. Exploitation requires no credentials or elevated privileges (CVSS PR:N) but does require the user to navigate to the attacker-controlled page (UI:R), and the resulting scope change (S:C) means impact extends beyond the browser's sandbox boundary to full confidentiality, integrity, and availability loss. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
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Exploit
technique details hidden
Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires the victim to run a vulnerable Chrome build prior to 153.0.8010.47 and, per the CVSS UI:R metric and description, to be socially engineered into visiting an attacker-controlled crafted HTML page that exercises the DigitalCredentials code path. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuinely high-priority issue, not an inflated CVSS score. … 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: Google Chrome 153.0.8010.47. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory Chrome versions across all managed and unmanaged endpoints and force-upgrade every stable-channel desktop and mobile installation to Google Chrome 153.0.8010.47 or later, confirming the browser has fully relaunched so the fixed build is active; alert the service desk and security operations to the DigitalCredentials social-engineering lure so user reports of unexpected credential prompts are escalated quickly. …

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

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CVE-2026-91729 vulnerability details – vuln.today

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