CVE-2011-1498

mediumpriority · track · 19EPSS 0.067 · 94 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

6.69% (94th) EPSS

CVSS 4.3 · medium

Is it mine?

5 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.7–4.3

v2.04.3mediumAV:N/AC:M/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 2.9

v2.03.7lowAV:N/AC:M/Au:N/C:P/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USprimaryCWE-200US

affected products (5)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
apache httpclient= 4.0nvdUScpe:2.3:a:apache:httpclient:*:*:*:*:*:*:*:*
apache httpclient= 4.0.1nvdUScpe:2.3:a:apache:httpclient:*:*:*:*:*:*:*:*
apache httpclient= 4.1nvdUScpe:2.3:a:apache:httpclient:*:*:*:*:*:*:*:*
Maven org.apache.httpcomponents:httpclient4.0.0 → 4.1.1osvUSpkg:maven/org.apache.httpcomponents/httpclient

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-gw85-4gmf-m7rhExposure of Sensitive Information to an Unauthorized Actor in Apache HttpClient2022-05-17ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2011-07-07modified 2026-06-16

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+19464 more

references (34)

External citations — patches, advisories, analysis.

scry

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