Back
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…
Medium4.3EPSS 6.7%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
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.
Timeline
ID reserved
By redhat
- 4 months later
· 4 months later
Published
- 13 years later
· 13 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium4.3 | AV:N/AC:M/Au:N/C:P/I:N/A:N |
- EPSS (exploitation in 30 days)
- 6.7% · top 6.0% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Weakness
Affected products
n/a
- affected n/a
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Mavenorg.apache.httpcomponents:httpclientGHSA-gw85-4gmf-m7rh (opens in a new tab)
References (14)
- [httpclient-users] 20110224 Proxy-Authorization header received on server side (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20110408 Re: Apache HttpClient CVE request [VU#153049] (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=709531 (opens in a new tab)x_refsource_CONFIRMx_transferred
- [httpclient-users] 20110224 Re: Proxy-Authorization header received on server side (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpclient-users] 20110224 RE: Proxy-Authorization header received on server side (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [oss-security] 20110407 Apache HttpClient CVE request [VU#153049] (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- https://issues.apache.org/jira/browse/HTTPCLIENT-1061 (opens in a new tab)x_refsource_CONFIRMx_transferred
- VU#153049 (opens in a new tab)third-party-advisoryx_refsource_CERT-VNx_transferred
- 46974 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- [httpclient-users] 20110224 Re: Proxy-Authorization header received on server side (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- 8298 (opens in a new tab)third-party-advisoryx_refsource_SREASONx_transferred
- FEDORA-2011-7747 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
- [httpclient-users] 20110224 RE: Proxy-Authorization header received on server side (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- http://www.apache.org/dist/httpcomponents/httpclient/RELEASE_NOTES-4.1.x.txt (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2022-4023 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-gw85-4gmf-m7rh (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2011-1498)Record last updated .