EUVD-2026-35212
GHSA-mfw4-fc92-pwx6
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Lifecycle Timeline
3DescriptionCVE.org
Insufficient validation of untrusted input in Dawn in Google Chrome on macOS prior to 149.0.7827.103 allowed a remote attacker who had compromised the renderer process to leak cross-origin data via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Cross-origin data leak in Chrome's Dawn (WebGPU) component on macOS affects all versions prior to 149.0.7827.103, allowing a remote attacker who has already compromised the renderer process to exfiltrate cross-origin data via a crafted HTML page. CVSS score of 3.1 (Low) accurately reflects the constrained impact: confidentiality loss only (C:L), no integrity or availability impact, and a hard prerequisite of prior renderer compromise that makes standalone exploitation impossible. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation has two explicit hard prerequisites derived directly from the CVE description and CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Multiple converging signals place this vulnerability at the low end of real-world priority. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker who has already achieved renderer-level code execution in Chrome on macOS - through a separate, more severe exploit such as a renderer RCE vulnerability - serves a specially crafted HTML page to the victim. The crafted page triggers the Dawn input validation flaw, causing the compromised renderer to leak data from a cross-origin context (such as a banking portal or authenticated session) back to the attacker-controlled renderer. … |
| Remediation | Update Google Chrome on macOS to version 149.0.7827.103 or later using the vendor-released patch documented in the stable channel update advisory at https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
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External POC / Exploit Code
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