CVE-2011-1498
MEDIUM · CVSS 4.3EPSS 6.7%EU EUVD
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.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:N/A:N- Weakness (CWE)
- CWE-200
- EPSS score
- 6.7% (94th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2022-4023)
- Published
- July 7, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2022-4023 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- apache / httpclient
- apache / httpclient
- apache / httpclient
- apache / httpclient
- apache / httpclient
- apache / httpclient
- apache / httpclient
- apache / httpclient
- apache / httpclient
- apache / httpclient
- apache / httpclient
- apache / httpclient
References
- http://lists.fedoraproject.org/pipermail/package-announce/2011-June/061440.html
- http://marc.info/?l=httpclient-users&m=129853896315461&w=2
- http://marc.info/?l=httpclient-users&m=129856318011586&w=2
- http://marc.info/?l=httpclient-users&m=129857589129183&w=2
- http://marc.info/?l=httpclient-users&m=129858274406594&w=2
- http://marc.info/?l=httpclient-users&m=129858299106950&w=2
- http://openwall.com/lists/oss-security/2011/04/07/7
- http://openwall.com/lists/oss-security/2011/04/08/1
- http://securityreason.com/securityalert/8298
- http://www.apache.org/dist/httpcomponents/httpclient/RELEASE_NOTES-4.1.x.txt
- http://www.kb.cert.org/vuls/id/153049(US Government Resource)
- http://www.securityfocus.com/bid/46974
- https://bugzilla.redhat.com/show_bug.cgi?id=709531
- https://issues.apache.org/jira/browse/HTTPCLIENT-1061
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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