CVE-2026-64607

A flaw was found in Apache HttpComponents Client, specifically in its classic input/output I/O model. When processing a response message with an invalid or unsupported Content-Encoding header, the client fails to properly release the underlying network connection. This connection leak can lead to...

Security Bulletin: IBM i is Affected By Holding Resources after Effective Lifetime Vulnerability in Electronic Service Agent [CVE-2026-64607]

Summary Electronic Service Agent for IBM i uses HttpClient for HTTP message handling. HttpClient is vulnerable to not releasing underlying resources when encountering an invalid or unsupported 'Content-Encoding' header value CVE-2026-64607 as described in the vulnerability details section...

Fortinet FortiWeb Content-Encoding WAF Evasion (FG-IR-26-157)

The version of FortiWeb installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-26-157 advisory. - A incomplete list of disallowed inputs vulnerability in Fortinet FortiWeb 8.0.0 through 8.0.2, FortiWeb 7.6.0 through 7.6.5,...

undici: undici: Denial of Service via unbounded decompression of compressed responses

A flaw was found in undici. The decompress interceptor in undici processes compressed response bodies based on the untrusted Content-Encoding header. A remote attacker can exploit this by sending a small, specially crafted compressed payload, known as a 'compression bomb,' which expands...

SUSE 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...

Linux Distros Unpatched Vulnerability : CVE-2026-64607

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

Apache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS

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...

GHSA-HJCP-JMPX-G3QM Apache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS

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...

Missing Release of Resource after Effective Lifetime

Overview org.apache.httpcomponents.client5:httpclient5 is a HttpClient component of the Apache HttpComponents project. Affected versions of this package are vulnerable to Missing Release of Resource after Effective Lifetime via the ContentCompressionExec response decoding path in...

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...

UBUNTU-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...

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...

CVE-2026-64607 Apache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS

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...

EUVD-2026-51519

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...

CVE-2026-64607

The Apache HttpComponents Client (versions 5.0-alpha1 through 5.6.2) contains a resource leak vulnerability (CWE-772 ) where the HttpClient based on the classic i/o model fails to release underlying connections back to the connection manager when encountering invalid or unsupported Content-Encodi...

CVE-2026-64607 Apache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS

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...

CVE-2026-64607 Apache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS

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...

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...

PT-2026-66745

Name of the Vulnerable Software and Affected Versions Apache HttpComponents Client versions 5.0-alpha1 through 5.6.2 Description HttpClient based on the classic i/o model fails to correctly release the underlying connection back to the connection manager when it encounters an invalid or unsupport...

CVE-2026-64607: Missing Release of Resource after Effective Lifetime

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...