CVE-2026-13823 Overview
CVE-2026-13823 is a use-after-free vulnerability [CWE-416] in the Glic component of Google Chrome. The flaw affects Chrome versions prior to 150.0.7871.47. A remote attacker who has already compromised the renderer process can leverage a crafted HTML page to trigger the condition and potentially escape the Chrome sandbox. Google classifies the Chromium security severity as High, and the assigned CVSS 3.1 base score is 8.3. The vulnerability requires user interaction and relies on chaining with a prior renderer compromise, but successful exploitation grants the attacker code execution outside the sandboxed renderer boundary.
Critical Impact
Successful exploitation enables a sandbox escape from a compromised renderer, giving attackers broader access to the host operating system through a single crafted HTML page.
Affected Products
- Google Chrome for Desktop versions prior to 150.0.7871.47
- Chromium-based browsers that embed the vulnerable Glic component
- All operating system builds (Windows, macOS, Linux) shipped before the stable channel update
Discovery Timeline
- 2026-06-30 - CVE-2026-13823 published to NVD
- 2026-07-02 - Last updated in NVD database
Technical Details for CVE-2026-13823
Vulnerability Analysis
The vulnerability is a use-after-free condition in Glic, a component within the Chrome browser process. Use-after-free bugs occur when a program continues to reference memory after that memory has been released. When an attacker can control the contents of the freed region, the dangling pointer can be redirected to attacker-influenced data.
In this case, the flaw is reachable from a renderer process that the attacker has already compromised. The renderer sends crafted messages or triggers operations that cause Glic to access freed memory. Because Glic runs at a higher privilege boundary than the sandboxed renderer, successful exploitation crosses the sandbox scope, reflected in the CVSS scope change component.
Root Cause
The root cause is improper lifetime management of an object within the Glic component. A reference to the object persists after its backing memory is released, and subsequent operations dereference the stale pointer. See the Chromium Issue Tracker Entry for implementation-level context once access is granted.
Attack Vector
Exploitation requires two conditions. First, the attacker must already control a compromised renderer process, typically achieved through a separate renderer-side bug or a chained vulnerability. Second, the victim must load a crafted HTML page that triggers the Glic interaction path. The attacker then manipulates object lifetimes to reach the freed state and pivots the dangling reference into a sandbox escape primitive.
No verified proof-of-concept code has been released publicly, and no exploit is currently listed in Exploit-DB or the CISA Known Exploited Vulnerabilities catalog.
Detection Methods for CVE-2026-13823
Indicators of Compromise
- Chrome browser processes spawning unexpected child processes or shell interpreters after rendering untrusted web content
- Crashes in the Glic component logged in Chrome crash reports referencing freed memory access
- Unusual outbound network connections originating from the Chrome browser process rather than renderer children
Detection Strategies
- Inventory installed Chrome versions across the fleet and flag any endpoint running a build older than 150.0.7871.47
- Monitor for behavioral anomalies where the Chrome parent process performs actions typically confined to sandboxed renderers, such as file writes to sensitive paths
- Correlate renderer crash telemetry with subsequent process-injection or privilege-escalation attempts on the same host
Monitoring Recommendations
- Ingest Chrome update state and browser version telemetry into your SIEM or asset management platform for continuous version tracking
- Alert on process trees where chrome.exe (or the platform equivalent) launches unexpected binaries following web navigation events
- Track visits to untrusted external domains immediately preceded by renderer crashes as a possible exploitation attempt
How to Mitigate CVE-2026-13823
Immediate Actions Required
- Update Google Chrome to version 150.0.7871.47 or later on all managed endpoints
- Force-restart Chrome sessions after deployment to ensure the patched binary is loaded into memory
- Validate patch application through enterprise management tooling and confirm the reported version on each host
Patch Information
Google addressed the vulnerability in the Chrome stable channel update documented in the Google Chrome Desktop Update. The fix is included in Chrome 150.0.7871.47 and later builds. Downstream Chromium-based browsers should pull the corresponding upstream patch.
Workarounds
- Restrict browsing to trusted sites through enterprise policy until the patch is deployed
- Enable site isolation and strict extension controls to reduce the pre-conditions needed for a renderer compromise
- Deploy Chrome enterprise policies that enforce automatic updates and prohibit users from postponing browser restarts
# Verify installed Chrome version on Linux
google-chrome --version
# Windows registry check for enforced auto-update
reg query "HKLM\SOFTWARE\Policies\Google\Update" /v UpdateDefault
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
