EUVD-2026-50842
GHSA-qh6m-vhx2-qh42
Severity by source
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Local attacker feeds crafted traffic to the privileged updater (AV:L, PR:N, UI:N); use-after-free yields full control of that component, so C/I/A all High with unchanged scope.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
8DescriptionCVE.org
Use after free in Updater in Google Chrome on Mac prior to 151.0.7922.72 allowed a local attacker to perform privilege escalation via malicious network traffic. (Chromium security severity: High)
AnalysisAI
Privilege escalation in Google Chrome's Updater component on macOS (versions before 151.0.7922.72) stems from a use-after-free (CWE-416) that a local attacker can trigger via malicious network traffic, letting them execute code in the context of the privileged updater process. Google rated the Chromium severity as High and has shipped a fixed stable-channel build; there is no public exploit identified at time of analysis and EPSS exploitation probability is low (0.18%, 7th percentile). …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local presence on a macOS system running Google Chrome older than 151.0.7922.72, and specifically targets the Chrome Updater component, triggered by malicious network traffic that the local attacker delivers to that updater. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals are largely consistent toward a real but not urgent priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A local attacker who already has a foothold on a macOS machine - for example an unprivileged user account or a low-privilege process from a prior compromise - feeds crafted/malicious traffic to Chrome's privileged updater to trigger the use-after-free, corrupting memory and elevating to the updater's privilege level. Given the AV:L/AC:L profile the technical barrier is low once local access exists, but no public proof-of-concept has been identified, so this remains a plausible rather than demonstrated chain. |
| Remediation | Vendor-released patch: update Google Chrome to 151.0.7922.72 or later on macOS, per Google's stable-channel advisory (https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: inventory Chrome versions across all macOS endpoints to identify systems running builds before 151.0.7922.72, flagging administrative and high-risk users for priority attention. …
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Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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