PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-10001 Google CVE debrief

A use-after-free vulnerability in Google Chrome's PerformanceManager component, present in versions prior to 148.0.7778.216, enables a remote attacker who has already compromised the renderer process to potentially escape the browser sandbox. The vulnerability was assigned a High severity rating by the Chromium security team. The use-after-free condition (CWE-416) occurs when memory is accessed after it has been freed, which can lead to memory corruption and arbitrary code execution. In this case, the attack vector requires initial renderer compromise, indicating this is likely part of a multi-stage exploit chain rather than a standalone remote exploit.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.3
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 users running Google Chrome versions prior to 148.0.7778.216, particularly those in high-threat environments or with users who may be targeted by advanced adversaries capable of multi-stage browser exploits.

Technical summary

The vulnerability exists in the PerformanceManager component of Google Chrome, which is responsible for monitoring and managing page performance metrics. A use-after-free condition allows an attacker with renderer process access to corrupt memory and potentially execute code outside the sandbox. The fix was released in Chrome 148.0.7778.216.

Defensive priority

high

Recommended defensive actions

  • Update Google Chrome to version 148.0.7778.216 or later immediately
  • Prioritize patching systems where users browse untrusted or adversarial web content
  • Review browser isolation policies and consider additional sandboxing defenses for high-risk users
  • Monitor for indicators of renderer compromise as potential precursor to this exploit
  • Ensure endpoint detection capabilities can identify anomalous browser process behavior

Evidence notes

The CVE description explicitly states the vulnerability is a use-after-free in PerformanceManager with sandbox escape potential. The Chromium issue tracker reference (ref-5) and Chrome release notes (ref-4) provide official vendor confirmation. The NVD entry (nvd) and CVE.org record (cve-org) corroborate the vulnerability metadata. The weakness is classified as CWE-416 (Use After Free) per the official source.

Official resources

2026-05-28