Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessHost malicious HTML page
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DeliverySocial engineer victim to visit via phishing/watering hole
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ExploitPrompt specific UI gesture sequences
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ExecutionTrigger input validation bypass in Chrome UI layer
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PersistExecute arbitrary code in browser context
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ImpactPotential privilege escalation or data exfiltration
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V2 - Validation and Business Logic Input validation, allowlisting
|
| Exploitation Conditions | Requires Google Chrome version prior to 148.0.7778.96 running specifically on Linux or ChromeOS operating systems - Windows and macOS platforms are not affected. Victim must visit attacker-controlled or compromised website hosting crafted HTML page (AV:N). User must perform specific UI gesture sequences as prompted or tricked by the malicious page (UI:R) - mere page load is insufficient. The exact gesture sequences are not publicly disclosed in available references, but description emphasizes 'specific UI gestures' indicating non-trivial user interaction beyond simple clicks. No authentication required (PR:N), making any Chrome user on vulnerable platforms a potential target. Attack works against default Chrome configurations without requiring non-standard settings or extensions. |
| Impact | Real-world risk is moderate-high despite CVSS 8.8 score. The attack vector requires network access (AV:N) with low complexity (AC:L) and no authentication (PR:N), making delivery straightforward via malicious websites. However, required user interaction (UI:R) significantly limits exploitation - users must perform specific UI gestures, not just visit a page. EPSS data not provided, but social engineering difficulty for specific gesture sequences typically reduces exploitation probability compared to drive-by attacks. No CISA KEV listing indicates no confirmed active exploitation in critical infrastructure. The Medium Chromium security severity rating (vendor's internal assessment) appears lower than CVSS 8.8 suggests, possibly reflecting the specificity of required UI gestures or limited attack surface on Linux/ChromeOS compared to Windows. Patch availability in widely-deployed stable channel update substantially reduces window of opportunity. Priority should focus on Linux/ChromeOS Chrome deployments in environments where users might interact with untrusted web content. |
| Exploit ScenarioDerived | Attacker hosts a malicious HTML page disguised as legitimate content (banking portal, social media, productivity tool). Victim using Chrome on Linux or ChromeOS visits the page. Through social engineering prompts embedded in the page design, attacker convinces user to perform specific UI gesture sequences (potentially drag-and-drop operations, context menu interactions, or keyboard combinations with mouse clicks). When user completes the required gestures, crafted malicious input bypasses UI validation checks and triggers code execution with browser process privileges, allowing attacker to execute arbitrary code on the victim's system. |
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Alert meAnalysisAIv1 – May 06, 2026
Remote code execution in Google Chrome versions prior to 148.0.7778.96 on Linux and ChromeOS allows attackers to execute arbitrary code when users perform specific UI gestures on a malicious webpage. The vulnerability stems from insufficient input validation in Chrome's UI layer (CWE-20). Vendor patch available in Chrome 148.0.7778.96. No public exploit identified at time of analysis, though CVSS 8.8 reflects high impact across confidentiality, integrity, and availability.
RemediationAI
Update Google Chrome to version 148.0.7778.96 or later immediately via browser's built-in update mechanism (Settings → About Chrome) or system package manager on Linux distributions. Enterprise deployments should push Chrome 148.0.7778.96 through managed update channels. For environments unable to patch immediately, implement defense-in-depth controls: restrict browsing to trusted domains via enterprise policy (URLBlocklist/URLAllowlist), deploy web filtering to block known-malicious sites, and educate users to avoid unusual UI gesture requests from untrusted websites (though specifics of required gestures are not disclosed, reducing mitigation effectiveness). Consider temporarily disabling Chrome on Linux/ChromeOS systems handling sensitive data if immediate patching is impossible, switching to unaffected browsers until update deployment. No workarounds bypass the vulnerability completely - patching is the only complete remediation. Consult official advisory at chromereleases.googleblog.com/2026/05/stable-channel-update-for-desktop.html for additional vendor guidance.
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
The vulnerability exists in Google Chrome's UI handling layer on Linux and ChromeOS platforms, specifically in how the browser validates untrusted input before processing user interface gestures. CWE-20 (Improper Input Validation) indicates the root cause is failure to properly sanitize or validate data before use in UI operations. The affected component processes HTML page content and user interactions, creating a pathway for malicious input to reach privileged browser functions. Chrome's UI layer bridges web content with native operating system interfaces, making input validation failures in this component particularly dangerous as they can bypass browser sandbox protections when combined with specific user gestures. The platform-specific nature (Linux/ChromeOS only) suggests the vulnerability involves UI frameworks or system calls unique to these environments.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Insufficient validation of untrusted input in UI in Google Chrome on Linux, ChromeOS prior to 148.0.7778.96 allowed a remote attacker who convinced a user to engage in specific UI gestures to execute arbitrary code via a crafted HTML page. (Chromium security severity: Medium)
Executive ViewAI
Google Chrome versions prior to 148.0.7778.96 contain a remote code execution vulnerability affecting Linux and ChromeOS users, allowing attackers to execute arbitrary code through malicious webpages without requiring user authentication beyond normal browsing. Organizations with Chrome deployments in these environments face direct risk to endpoint security and data confidentiality, with potential for lateral movement and system compromise.
Apply vendor patch. Interim: restrict Chrome usage on Linux/ChromeOS to internal, vetted websites only; disable JavaScript execution for untrusted domains if operationally feasible; monitor for suspicious process execution originating from Chrome processes.
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
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
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Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13
EUVD-2026-28087
NVD
CVE.org
EPSS
Vulnrichment
GitHub PoC
Exploit-DB