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CVE-2011-1498

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 server...

Published: Jul 7, 2011Updated: Apr 29, 2026 Sources: CVE List NVD GHSACWE-200
4.3MEDIUM
NVD MITRE
EPSS Score
6.7%
Top 6.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Exposure of Sensitive Information to an Unauthorized Actor in Apache HttpClient

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:MAu:NC:PI:NA:N
Exploitability
AV:NAccess Vector
Network
AC:MAccess Complexity
Medium
Au:NAuthentication
None
Impact
C:PConfidentiality
Partial
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-200

Affected Products

Maven
package-ecosystem
org.apache.httpcomponents:httpclient
OSS Libraries
apache
oss-project·USaka apache httpd, apache http server
httpclientLibrary
OSS Libraries / generic-library
and 1 more affected products View all →

Exploitability

Official Patch Available
Scannable·OpenVAS
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2011-1498
nvd.nist.gov
https://github.com/apache/httpcomponents-client/commit/a572756592c969affd0ce87885724e74839176fb
github.com
https://bugzilla.redhat.com/show_bug.cgi?id=709531
bugzilla.redhat.com
and 14 more references View all →
News mentions
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