CVE-2026-11111: Chrome Out-of-Bounds Read in ANGLE Graphics Engine — Patch Guidance

Technical summary

CVE-2026-11111 is an out-of-bounds read vulnerability in ANGLE (Almost Native Graphics Layer Engine), Chrome's cross-platform graphics abstraction layer. The flaw allows remote code execution context to read memory beyond allocated buffer boundaries via a crafted HTML document. Classified as CWE-125 (out-of-bounds read), the vulnerability affects the rendering pipeline and could leak heap, stack, or GPU memory contents. Chrome patched this in version 149.0.7827.53 and later. The CVSS 3.1 score of 8.1 (High) reflects network-based attack vector, low complexity, no privilege requirements, user interaction dependency, and dual impact on confidentiality and availability.

Business impact

Successful exploitation could expose sensitive information including user credentials, cached data, session tokens, or proprietary information processed in the browser. While the vulnerability does not directly enable code execution or data modification, the leaked information can be weaponized for follow-up attacks, credential theft, or espionage. For organizations with strict data governance requirements, this represents a confidentiality breach risk. The attack surface is broad—any user visiting a compromised or attacker-controlled website is at risk. Organizations should prioritize patching to prevent information disclosure incidents, particularly for users handling sensitive data or accessing critical systems.

Affected systems

Google Chrome versions prior to 149.0.7827.53 on Windows, macOS, and Linux distributions are affected. Users of Chromium-based browsers built on vulnerable versions may also be exposed. The vulnerability is platform-agnostic within the ANGLE graphics layer, meaning affected systems span consumer and enterprise endpoints across multiple operating systems. Organizations should inventory Chrome deployments across their environment and verify patch status against version 149.0.7827.53 or later.

Exploitability

The vulnerability is remotely exploitable with low complexity and requires no privilege escalation or special configuration. However, it does require user interaction—the target must actively visit a malicious webpage for the attack to trigger. There is no evidence the vulnerability is currently exploited in the wild (KEV status is inactive), but the low barrier to weaponization means risk increases with time. Once exploit code is publicly released or proof-of-concept details emerge, threat actors could integrate this into malicious ad networks, watering hole attacks, or phishing campaigns. The attack can be delivered passively through visited webpages without the user's awareness that memory is being read.

Remediation

Update Google Chrome to version 149.0.7827.53 or later immediately. The patch addresses the out-of-bounds read by fixing buffer boundary checks in ANGLE. Organizations should enable automatic Chrome updates if not already configured, deploy patches through managed endpoints, and verify patch compliance within 7–14 days. For users on locked-down systems, IT teams should schedule and execute manual updates. Verify patch installation by confirming Chrome version in Settings > About Chrome; the browser will show the current version and auto-update status.

Patch guidance

Google released a fix in Chrome 149.0.7827.53. Verify your installed version: open Chrome, select Menu > Settings > About Chrome, and confirm the version number matches 149.0.7827.53 or higher. Auto-update is the default; if disabled, manually check for updates using the same menu path. For enterprise deployments, use Chrome Enterprise policies (via Group Policy, Mobile Device Management, or cloud-based management) to enforce updates. Test patches in a staging environment if your organization uses custom configurations, extensions, or depends on specific ANGLE rendering behavior. No rollback is necessary; the patch is stable and production-ready.

Detection guidance

Network-based detection is limited since the malicious HTML triggers rendering on the client side. However, monitor for: (1) unusual memory access patterns or crashes in Chrome processes if systems run kernel-level tools; (2) users visiting known malicious or compromised domains; (3) anomalous JavaScript execution triggering graphics API calls; (4) increases in Chrome crash reports or browser hangs. Endpoint detection and response (EDR) tools with browser visibility can correlate visits to untrusted domains with subsequent data exfiltration. Web proxies and DNS logs help identify users accessing known malware distribution sites. No signature-based detection exists pre-patch; focus on asset inventory and patch compliance verification.

Why prioritize this

Despite no active exploitation (KEV inactive), prioritize this vulnerability due to: (1) HIGH CVSS score (8.1) reflecting confidentiality and availability impact; (2) broad attack surface—any webpage visit can trigger exploitation; (3) low complexity and no privilege requirements, making weaponization straightforward; (4) information disclosure risk that could cascade into credential theft or lateral movement; (5) near-universal Chrome deployment in enterprises, increasing blast radius. This is a 'must-patch' issue within 1–2 weeks even before public exploit availability.

Risk score, explained

The CVSS 3.1 score of 8.1 (High) is justified by: Attack Vector = Network (AV:N) — remotely exploitable via HTML; Attack Complexity = Low (AC:L) — no special conditions needed; Privileges Required = None (PR:N) — unauthenticated attack; User Interaction = Required (UI:R) — victim must visit the page; Confidentiality = High (C:H) — unrestricted memory read leaks sensitive data; Integrity = None (I:N) — no data modification; Availability = High (A:H) — memory read could crash the renderer or degrade performance. The score reflects a serious information disclosure threat, elevated from Medium (Chromium's internal rating) due to wide Chrome usage and ease of exploitation.

Frequently asked questions