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4 vulnerabilities found for Apache HttpComponents Client by Apache Software Foundation
CVE-2026-71290 (GCVE-0-2026-71290)
Vulnerability from nvd – Published: 2026-08-11 20:33 – Updated: 2026-08-13 16:18
VLAI
EPSS
VEX
Title
Apache HttpComponents Client: TLS hostname verification silently disabled on the async transport (default config, MITM)
Summary
Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicy#BUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonate the server by presenting a valid certificate for a different domain.
Please note the classic version of HttpClient is not affected by this vulnerability.
Affected users are recommended to upgrade to at least version 5.6.4, which fixes the issue.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 19:19 UTC
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HttpComponents Client |
Affected:
5.4-alpha , ≤ 5.6.3
(semver)
|
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CVE-2026-64607 (GCVE-0-2026-64607)
Vulnerability from nvd – Published: 2026-07-31 10:12 – Updated: 2026-08-13 16:18
VLAI
EPSS
VEX
Title
Apache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS
Summary
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.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 16:24 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HttpComponents Client |
Affected:
5.0-alpha , ≤ 5.6.2
(semver)
|
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CVE-2026-71290 (GCVE-0-2026-71290)
Vulnerability from cvelistv5 – Published: 2026-08-11 20:33 – Updated: 2026-08-13 16:18
VLAI
EPSS
VEX
Title
Apache HttpComponents Client: TLS hostname verification silently disabled on the async transport (default config, MITM)
Summary
Improper TLS hostname verification vulnerability in Apache HttpComponents Client 5.4 or newer. HostnameVerificationPolicy#BUILTIN setting has no effect when used with the async version of HttpClient. An attacker that can intercept and modify traffic between the client and the server can impersonate the server by presenting a valid certificate for a different domain.
Please note the classic version of HttpClient is not affected by this vulnerability.
Affected users are recommended to upgrade to at least version 5.6.4, which fixes the issue.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 19:19 UTC
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HttpComponents Client |
Affected:
5.4-alpha , ≤ 5.6.3
(semver)
|
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CVE-2026-64607 (GCVE-0-2026-64607)
Vulnerability from cvelistv5 – Published: 2026-07-31 10:12 – Updated: 2026-08-13 16:18
VLAI
EPSS
VEX
Title
Apache HttpComponents Client: Connection Leak on Content-Encoding Decode Error Leads to Pool Exhaustion DoS
Summary
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.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 16:24 UTC
CWE
- CWE-772 - Missing Release of Resource after Effective Lifetime
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache HttpComponents Client |
Affected:
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(semver)
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"cveId": "CVE-2026-64607",
"datePublished": "2026-07-31T10:12:18.035Z",
"dateReserved": "2026-07-20T08:23:45.493Z",
"dateUpdated": "2026-08-13T16:18:20.395Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}