Apache HttpClient 4.x before 4.1.1 in Apache HttpComponents, when used with an…
Priority LOW 30CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Medium
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-200.
Summary
Apache HttpClient 4.x before 4.1.1 in Apache HttpComponents, when used with an authenticating proxy server, sends the Proxy-Authorization header to the origin server, which allows remote web servers to obtain sensitive information by logging this header.
Why it matters now
EPSS 0.06685 93rd percentileScored 2026-11-07
Fix Fixed org.apache.httpcomponents:httpclient (Maven): 4.1.1
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | org.apache.httpcomponents:httpclient (Maven) | 4.0.0 to before 4.1.1 | 4.1.1 | Patch available | GHSA-gw85-4gmf-m7rh |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- org.apache.httpcomponents:httpclient (Maven) Vendor— Affected 4.0.0 to before 4.1.1 Fixed in 4.1.1 Patch available GHSA-gw85-4gmf-m7rh
CPE configurations NVD · 12
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:apache:httpclient:4.0:*:*:*:*:*:*:* | 4.0 | Vulnerable | Apache |
| cpe:2.3:a:apache:httpclient:4.0:alpha1:*:*:*:*:*:* | 4.0 alpha1 | Vulnerable | Apache |
| cpe:2.3:a:apache:httpclient:4.0:alpha2:*:*:*:*:*:* | 4.0 alpha2 | Vulnerable | Apache |
| cpe:2.3:a:apache:httpclient:4.0:alpha3:*:*:*:*:*:* | 4.0 alpha3 | Vulnerable | Apache |
| cpe:2.3:a:apache:httpclient:4.0:alpha4:*:*:*:*:*:* | 4.0 alpha4 | Vulnerable | Apache |
| cpe:2.3:a:apache:httpclient:4.0:beta1:*:*:*:*:*:* | 4.0 beta1 | Vulnerable | Apache |
| cpe:2.3:a:apache:httpclient:4.0:beta2:*:*:*:*:*:* | 4.0 beta2 | Vulnerable | Apache |
| cpe:2.3:a:apache:httpclient:4.0.1:*:*:*:*:*:*:* | 4.0.1 | Vulnerable | Apache |
| cpe:2.3:a:apache:httpclient:4.1:*:*:*:*:*:*:* | 4.1 | Vulnerable | Apache |
| cpe:2.3:a:apache:httpclient:4.1:alpha1:*:*:*:*:*:* | 4.1 alpha1 | Vulnerable | Apache |
- cpe:2.3:a:apache:httpclient:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Apache
- cpe:2.3:a:apache:httpclient:4.0:alpha1:*:*:*:*:*:* Versions 4.0 alpha1 Vulnerable ·Apache
- cpe:2.3:a:apache:httpclient:4.0:alpha2:*:*:*:*:*:* Versions 4.0 alpha2 Vulnerable ·Apache
- cpe:2.3:a:apache:httpclient:4.0:alpha3:*:*:*:*:*:* Versions 4.0 alpha3 Vulnerable ·Apache
- cpe:2.3:a:apache:httpclient:4.0:alpha4:*:*:*:*:*:* Versions 4.0 alpha4 Vulnerable ·Apache
- cpe:2.3:a:apache:httpclient:4.0:beta1:*:*:*:*:*:* Versions 4.0 beta1 Vulnerable ·Apache
- cpe:2.3:a:apache:httpclient:4.0:beta2:*:*:*:*:*:* Versions 4.0 beta2 Vulnerable ·Apache
- cpe:2.3:a:apache:httpclient:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Apache
- cpe:2.3:a:apache:httpclient:4.1:*:*:*:*:*:*:* Versions 4.1 Vulnerable ·Apache
- cpe:2.3:a:apache:httpclient:4.1:alpha1:*:*:*:*:*:* Versions 4.1 alpha1 Vulnerable ·Apache
Remediation
- Fix · GHSA-gw85-4gmf-m7rh org.apache.httpcomponents:httpclient (Maven) Fixed in 4.1.1 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2011-1498
- 2026-10-03 Alias added: GHSA-gw85-4gmf-m7rh
References
Other 12
- [httpclient-users] 20110224 Proxy-Authorization header received on server side
- [oss-security] 20110408 Re: Apache HttpClient CVE request [VU#153049]
- https://bugzilla.redhat.com/show_bug.cgi?id=709531
- [httpclient-users] 20110224 Re: Proxy-Authorization header received on server side
- [httpclient-users] 20110224 RE: Proxy-Authorization header received on server side
- [oss-security] 20110407 Apache HttpClient CVE request [VU#153049]
- https://issues.apache.org/jira/browse/HTTPCLIENT-1061
- [httpclient-users] 20110224 Re: Proxy-Authorization header received on server side
- [httpclient-users] 20110224 RE: Proxy-Authorization header received on server side
- http://www.apache.org/dist/httpcomponents/httpclient/RELEASE_NOTES-4.1.x.txt
- https://github.com/apache/httpcomponents-client/commit/a572756592c969affd0ce87885724e74839176fb
- https://github.com/apache/httpcomponents-client
More Apache Httpclient vulnerabilities
- TI-2013-03825 http/impl/client/HttpClientBuilder.java in Apache HttpClient 4.3.x before 4.3.1 does not… CVSS 3.1CRITICAL 9.8
- TI-2026-49957 Apache HttpComponents Client: TLS hostname verification silently disabled on the async transport (default config, MITM) CVSS 3.1CRITICAL 9.1
- TI-2020-10932 Improper input validation in Apache HttpClient CVSS 3.1MEDIUM 5.3
- TI-2025-20592 Apache HttpComponents: PSL (Public Suffix List) validation bypass CVSS 3.1HIGH 7.5
- TI-2026-29288 Apache HttpClient: SCRAM-SHA-256 mutual authentication bypass may cause the client to… CVSS 3.1HIGH 7.3
- TI-2015-04421 http/conn/ssl/SSLConnectionSocketFactory.java in Apache HttpComponents HttpClient before… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2011-1498 · CVE Program
- CVE-2011-1498 · NVD
- FIRST EPSS
- GHSA-gw85-4gmf-m7rh · GitHub Advisory Database · CC BY 4.0
- CVE-2011-1498 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences