CVE-2026-11180 in Chrome
Summary
by MITRE • 06/05/2026
Inappropriate implementation in SVG in Google Chrome prior to 149.0.7827.53 allowed a remote attacker to leak cross-origin data via a crafted HTML page. (Chromium security severity: Medium)
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Analysis
by VulDB Data Team • 06/05/2026
This vulnerability represents a cross-origin resource sharing issue within Google Chrome's SVG processing implementation that could potentially enable data leakage across different origins. The flaw existed in versions prior to 149.0.7827.53 and allowed remote attackers to craft malicious HTML pages that could exploit improper handling of SVG elements to access data from different origins. The vulnerability falls under the category of information disclosure and represents a significant security concern given the potential for unauthorized data access across domain boundaries.
The technical implementation flaw stems from inadequate validation and sanitization of SVG content within Chrome's rendering engine. When processing crafted HTML pages containing malicious SVG elements, the browser fails to properly enforce cross-origin restrictions that should normally prevent access to resources from different domains. This improper handling creates a pathway for attackers to construct specific SVG code that can bypass security mechanisms designed to isolate different origins. The vulnerability demonstrates weaknesses in Chrome's security model for handling vector graphics content and how improper implementation of cross-origin checks can lead to information disclosure.
The operational impact of this vulnerability extends beyond simple data leakage as it could enable sophisticated attacks such as cross-site scripting attempts or data exfiltration from sensitive applications. Attackers could leverage this flaw to gather information from users' browsing sessions, potentially accessing cookies, session tokens, or other sensitive data from different origins. The medium severity classification indicates that while the vulnerability requires specific conditions to be exploited, the potential consequences for user privacy and application security are significant. This type of vulnerability can be particularly dangerous in environments where users interact with multiple applications or services that may be vulnerable to cross-origin attacks.
Mitigation strategies should focus on immediate patching of affected Chrome versions to ensure users are running the latest security updates. Organizations should also implement network-level monitoring to detect potential exploitation attempts and consider deploying content security policies that restrict SVG processing from untrusted sources. The vulnerability highlights the importance of proper input validation and cross-origin resource handling in web browsers, aligning with security principles outlined in CWE-20 and CWE-213. Additionally, security teams should review their incident response procedures to ensure readiness for potential exploitation of similar cross-origin vulnerabilities. The remediation approach should include both immediate patch deployment and long-term security architecture improvements to prevent similar implementation flaws in other browser components.