CVE-2026-9887
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Use After Free in Google Chrome Proxy
Publication date: 2026-05-28
Last updated on: 2026-05-28
Assigner: Chrome
Description
Description
Use after free in Proxy in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code via a crafted PAC script. (Chromium security severity: Critical)
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| chrome | to 148.0.7778.216 (exc) |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-416 | The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer. |
Attack-Flow Graph
AI Powered Q&A
How can this vulnerability impact me? :
An attacker exploiting this vulnerability could execute arbitrary code on your system remotely. This could lead to unauthorized control over your device, potentially allowing the attacker to install malware, steal data, or perform other malicious actions.
Can you explain this vulnerability to me?
This vulnerability is a use-after-free issue in the Proxy component of Google Chrome versions prior to 148.0.7778.216. It allows a remote attacker to execute arbitrary code by using a specially crafted PAC (Proxy Auto-Config) script.
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