Vulnerability Details CVE-2025-4600
A request smuggling vulnerability existed in the Google Cloud Classic Application Load Balancer due to improper handling of chunked-encoded HTTP requests. This allowed attackers to craft requests that could be misinterpreted by backend servers. The issue was fixed by disallowing stray data after a chunk, and is no longer exploitable. No action is required as Classic Application Load Balancer service after 2025-04-26 is not vulnerable.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 11.2%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2025-4600
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cpe:2.3:a:google:application_load_balancer:*