Vulnerability Details CVE-2026-64607
HttpClient based on the classic i/o model fails to correctly release the underlying connection back to the connection manager if it encounters an invalid or unsupported `Content-Encoding` header value in the response message. Please note this defect does not affect HttpClient based on the async i/o model.
This issue affects Apache HttpComponents Client: from 5.0-alpha1 through 5.6.2.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 14.8%
CVSS Severity
CVSS v3 Score 5.3