CVE-2026-14428: Chrome Android Sandbox Escape Vulnerability – Patch Guidance

Technical summary

CVE-2026-14428 is a sandbox escape vulnerability in the Dawn graphics abstraction layer of Google Chrome on Android versions prior to 150.0.7871.46. The flaw stems from insufficient validation of untrusted input within the Dawn component. An attacker with an existing renderer process compromise can craft a malicious HTML page that triggers the validation bypass, transitioning from a sandboxed renderer context to unmediated system-level code execution. The vulnerability is classified as High severity by the Chromium security team and carries a CVSS 3.1 score of 8.3, reflecting both the severe impact (code execution, data confidentiality/integrity loss, denial of service) and moderate attack complexity (requires user interaction and prior renderer compromise).

Business impact

This vulnerability poses significant risk to mobile users running unpatched Chrome on Android, particularly those handling sensitive communications, financial transactions, or accessing privileged accounts. The sandbox escape means a compromised renderer process—which might result from visiting a malicious website or clicking a trojan link—can escalate to full device compromise, enabling attackers to steal credentials, intercept data, install persistent malware, or exfiltrate sensitive corporate or personal information. For organizations with BYOD policies or mobile-first workforces, this represents a potential pathway to internal network access and data exfiltration at scale.

Affected systems

Google Chrome on Android versions prior to 150.0.7871.46 are affected. The vulnerability is specific to Android; desktop/Mac/Linux Chrome versions are not impacted by this particular flaw. Users running Chrome 150.0.7871.46 or later on Android are protected. Organizations should verify device inventory to identify any Android devices with Chrome versions below the patched release.

Exploitability

Exploitation requires two preconditions: (1) the attacker must first compromise the Chrome renderer process (via malicious website, trojan, or other vector), and (2) the user must be tricked into visiting or loading a crafted HTML page. The attack chain is not trivial—a successful renderer compromise already implies significant exposure—but the sandbox escape amplifies the damage from renderer-level access to full system compromise. The attack vector is network-based and does not require special privileges; however, the interaction requirement (user visiting the page) and the prerequisite renderer compromise limit opportunistic exploitation. No active exploitation in the wild has been reported at this time.

Remediation

Update Google Chrome on Android to version 150.0.7871.46 or later immediately. This patch is the canonical fix released by Google. For organizations managing Android devices (MDM/EMM), deploy version 150.0.7871.46 or newer via automated update policies. Encourage or mandate users to enable automatic updates for Chrome. For users on older Android OS versions that may not support the latest Chrome build, verify compatibility and test updates in a non-production environment before full rollout.

Patch guidance

Google released fix version 150.0.7871.46 on July 1, 2026. Verify the patch version on the device by navigating to Chrome Settings > About Chrome, which will display the installed version. If the version is below 150.0.7871.46, trigger an immediate update via Settings > About Chrome (the browser will automatically check for and download the patch). For organizations, use your MDM solution to enforce a minimum Chrome version policy and track compliance. Test the update on a representative device sample before organization-wide deployment to rule out compatibility issues with enterprise apps or workflows.

Detection guidance

Monitor for Chrome crash logs or unusual renderer process restarts on Android devices, which may indicate exploitation attempts against the Dawn component. Log aggregation systems should flag any device showing a Chrome version below 150.0.7871.46. Network-level detection is limited without visibility into encrypted traffic, but organizations using mobile threat defense solutions should enable scanning for malicious HTML payloads and compromised websites. Endpoint detection on Android (via MDM agents) can alert on unauthorized process escalation or system-level permission changes following browser activity.

Why prioritize this

This vulnerability merits urgent patching due to its sandbox-escape nature, the HIGH Chromium severity classification, and the potential for full device compromise. Although not currently in the CISA Known Exploited Vulnerabilities catalog, the technical severity and relative ease of delivery via web content (once renderer is compromised) justify prioritizing this over lower-impact flaws. Mobile device footprint in most organizations makes this a wide-reaching exposure.

Risk score, explained

The CVSS 3.1 score of 8.3 (HIGH) reflects: (a) high confidentiality, integrity, and availability impact (C:H, I:H, A:H) due to full code execution capability; (b) network-based attack vector (AV:N) requiring no special network access; (c) moderate attack complexity (AC:H) due to the need for prior renderer compromise; (d) no privilege escalation required (PR:N); (e) user interaction required (UI:R) to visit the malicious page; and (f) changed scope (S:C) because the impact extends beyond the sandbox. The score appropriately captures the critical nature of sandbox escapes while acknowledging the prerequisites for successful exploitation.

Frequently asked questions