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Exposure of Sensitive Information to an Unauthorized Actor in Apache HttpClientGHSA-gw85-4gmf-m7rh

Fix: apache/httpcomponents-client@a572756

GHSA-gw85-4gmf-m7rh is a Information Exposure vulnerability in org.apache.httpcomponents:httpclient. A fix is available for org.apache.httpcomponents:httpclient — see the affected versions and patch details below.

Also known asCVE-2011-1498
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
6.7%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs94th percentile — riskier than 94% of all scored CVEsHighest risk
2.72%4.35%5.97%7.60%3.6%6.7%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

Real-World Exposure

1 pkg affected
☕org.apache.httpcomponents:httpclient

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

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.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.apache.httpcomponents:httpclient≥ 4.0.0&&< 4.1.14.1.1org.apache.httpcomponents:httpclient:4.1.1

Affected Products

1 product · 12 configurations
Application
httpclientapache
3 versions
4.04.0.14.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.apache.httpcomponents:httpclient, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.apache.httpcomponents:httpclient to 4.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gw85-4gmf-m7rh is resolved across your whole dependency graph.

  3. Workarounds

    Assume what was exposed is already known: rotate any credential, token or key that the affected component could return, restrict the endpoint to callers that genuinely need it, and strip sensitive fields from responses and error output at the boundary rather than relying on the client not to read them.

Frequently Asked Questions

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.
O3 Security · Impact-Aware SCA

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Exposure of Sensitive Information to an Unauthorized…