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Httpclient5 CVEs with no public exploit

3 CVEs

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Product httpclient5✕
Overview 3 matches · 0 protected · 0 exploited · 0 CISA KEV · 0 public PoC · 0 EPSS ≥ 0.5
3matches 0protected0.0% 0exploited0.0% 0CISA KEV0.0% 0public PoC0.0% 0EPSS ≥ 0.50.0%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 0 0.0% No exploit published 3 100.0%
Critical 0 0.0% High 2 66.7% Medium 1 33.3% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 3 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 0 0.0% Working exploit published 0 0.0% Proof of concept only 0 0.0% Forecast only 0 0.0% No public exploit 3 100.0%
split by peak 1 / month
No exploit published: 3 Medium: 1High: 2 not blocked: 3 No public exploit: 3
Apr 251 No exploit published1 High1 not blocked1 No public exploit1 May 250 Jun 250 Jul 250 Aug 250 Sep 250 Oct 250 Nov 250 Dec 250 Jan 260 Feb 260 Mar 260 Apr 261 No exploit published1 High1 not blocked1 No public exploit1 May 260 Jun 260 Jul 261 No exploit published1 Medium1 not blocked1 No public exploit1
May 25Jul 25Sep 25Nov 25Jan 26Mar 26May 26Jul 26
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CVE Severity Published▾ Status Exploitation Description
CVE-2026-64607 Medium 2026-07-31 No exploit published No public exploit 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.
CVE-2026-40542 High 2026-04-22 No exploit published No public exploit Missing critical step in authentication in Apache HttpClient 5.6 allows an attacker to cause the client to accept SCRAM-SHA-256 authentication without proper mutual authentication verification. Users are recommended to upgrade to version 5.6.1, which fixes this issue.
CVE-2025-27820 High 2025-04-24 No exploit published No public exploit A bug in PSL validation logic in Apache HttpClient 5.4.x disables domain checks, affecting cookie management and host name verification. Discovered by the Apache HttpClient team. Fixed in the 5.4.3 release