Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessLure victim to crafted HTML page
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ExploitTrigger uninitialized Dawn/WebGPU resource
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ExecutionRead memory outside sandbox
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ImpactExfiltrate leaked bytes to attacker
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Variable initialization
|
| Exploitation Conditions | Requires the victim to load attacker-controlled HTML in Chrome for Android prior to 154.0.8037.92 that exercises the Dawn WebGPU graphics backend (i.e. WebGPU must be reachable/enabled for the crafted content). Limiting factors: user interaction is required (UI:R - the victim must visit the page), and while no authentication is needed (PR:N), the payoff is a low-confidence memory read only, useful chiefly as an information-leak building block rather than standalone compromise. Scoped to the Android platform per the advisory. |
| Impact | Signals are consistent and point to a genuine but low-severity issue. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N = 4.7) reflects a network-reachable flaw needing only that a victim load a crafted HTML page (UI:R), with a scope change (S:C) because memory is read OUTSIDE the renderer sandbox, but impact is limited to a low-confidence read (C:L) with no integrity or availability effect. Note the divergence between Chromium's internal 'High' severity rating and the NVD-style 4.7: Chromium rates memory-safety bugs by worst-case potential, while the scored vector captures the confirmed info-leak-only impact - treat 4.7 as the realistic figure. No EPSS score, no CISA KEV listing, and no public POC were provided, so this is 'no public exploit identified at time of analysis' - not active exploitation. A patch is available from the vendor. Bottom line: real but low-priority; an information-disclosure primitive (often useful only as one link in a larger exploit chain, e.g. ASLR defeat) rather than a directly weaponizable RCE. |
| Exploit ScenarioDerived | An attacker hosts a malicious web page that drives Chrome's Dawn WebGPU backend to use an uninitialized graphics resource; when an Android user visits the page, the flaw leaks bytes of memory from outside the renderer sandbox back to attacker-controlled script. No public exploit code is identified, and the low confidentiality impact means the leaked data is partial rather than a full memory dump. |
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Alert meAnalysisAIv1 – Sep 29, 2026
Uninitialized-resource handling in Dawn, Chromium's WebGPU implementation, exposes Chrome for Android builds prior to 154.0.8037.92 to out-of-bounds memory reads triggered by a crafted HTML page (CWE-908). A remote attacker who convinces a victim to load the malicious content can leak limited graphics-process memory that may fall outside the browser sandbox boundary, although the CVSS 3.1 score of 4.7 with C:L/I:N/A:N indicates the payoff is a low-confidence information disclosure rather than code execution. No public exploit code or confirmed active exploitation has been identified at time of analysis, and the vendor has released a fixed build.
RemediationAI
Vendor-released patch: upgrade Chrome for Android to 154.0.8037.92 or later via Google Play, or to the corresponding stable channel build listed in the advisory at https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_01807488085.html; enterprise fleets using managed Play or Chrome Browser Cloud Management should push the minimum version pin 154.0.8037.92 and verify compliance. If immediate upgrade is not possible, the exposure can be reduced by disabling the WebGPU backend on affected Android devices through enterprise policy or chrome://flags, which prevents attacker-controlled pages from reaching the vulnerable Dawn allocation path at the cost of breaking WebGPU-dependent web applications and any internal sites that rely on it; a restart is required for the setting to take effect and users can re-enable it unless the policy is enforced. Because exploitation depends on the victim visiting attacker-controlled HTML (UI:R), restricting navigation to untrusted content via Safe Browsing, URL blocklisting, and network-level content filtering provides additional but non-authoritative risk reduction. Note that the leak is an information-disclosure primitive only (C:L, I:N, A:N); no memory-corruption mitigation beyond patching is warranted, and no vendor-published workaround supersedes the fixed build.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
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Technical ContextAI · show details
Dawn is the cross-platform implementation of the WebGPU standard shipped inside Chromium, responsible for translating WebGPU API calls into native graphics commands (Vulkan, Metal, D3D12). CWE-908 (Use of Uninitialized Resource) means a memory buffer or object in Dawn's resource-allocation path was consumed before being initialized, so the caller may observe stale contents from previously freed or reused graphics memory. Because WebGPU work is dispatched through the browser's graphics/GPU process, a leak of this kind can cross the sandbox scope boundary, which is reflected in the assessed CVSS vector's S:C component. The vulnerability is platform-scoped to Android per the Chrome release advisory; the supplied CPE (cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*) is not platform-qualified and should be constrained to Android builds below 154.0.8037.92. The attack requires the victim to render attacker-supplied HTML that exercises the WebGPU backend (AV:N/AC:L/PR:N/UI:R), with no authentication needed but mandatory user interaction.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Network-reachable via crafted page (AV:N/AC:L/PR:N) needing a visit (UI:R); reading memory outside the sandbox is a scope change (S:C) with low confidentiality-only impact (C:L, I/A:N).
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
3DescriptionCVE.org
Uninitialized resource in Dawn in Google Chrome on on Android prior to 154.0.8037.92 allowed a remote attacker to read memory outside the sandbox via a crafted HTML page. (Chromium security severity: High)
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
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EUVD-2026-89379
GHSA-p59f-q4j9-wm5r
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB