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CVE-2026-9883 Google CVE debrief

A critical use-after-free vulnerability in Google Chrome's Base component, addressed in version 148.0.7778.216, enables remote code execution through crafted HTML pages. The vulnerability stems from improper memory management (CWE-416) where freed memory is subsequently accessed, potentially allowing attackers to execute arbitrary code in the context of the browser process. Chrome's Stable Channel update released May 28, 2026 resolves this issue. Organizations should prioritize updating Chrome installations given the critical severity rating and the attack vector requiring only user interaction with malicious web content.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-28
Original CVE updated
2026-05-29
Advisory published
2026-05-28
Advisory updated
2026-05-29

Who should care

Organizations with Chrome deployments, security teams managing browser security, endpoint protection teams, and users handling sensitive data through web browsers.

Technical summary

CVE-2026-9883 is a use-after-free vulnerability in the Base component of Google Chrome. The flaw occurs when memory that has been freed is subsequently accessed, leading to potential memory corruption and arbitrary code execution. An attacker can exploit this by convincing a user to visit a maliciously crafted HTML page. Successful exploitation grants code execution in the browser's security context. The vulnerability was remediated in Chrome Stable Channel version 148.0.7778.216 released May 28, 2026.

Defensive priority

critical

Recommended defensive actions

  • Update Google Chrome to version 148.0.7778.216 or later immediately
  • Verify Chrome auto-update is enabled for automatic patch deployment
  • Review browser extension policies to reduce attack surface
  • Monitor for unusual browser crashes or unexpected behavior as potential exploitation indicators
  • Consider implementing site isolation policies and restricting execution of untrusted web content where feasible

Evidence notes

Vulnerability classified as Critical by Chromium security team. Use-after-free in Base component. Fixed in Chrome 148.0.7778.216. CWE-416 (Use After Free) assigned. No known exploitation in the wild reported at time of disclosure.

Official resources

2026-05-28T23:16:46.267Z