Is CVE-2020-13956 actively exploited?

CVE-2020-13956 has no public evidence of in-the-wild exploitation as of 2025-12-01.

What is the CVSS score for CVE-2020-13956?

CVE-2020-13956 has a CVSS score of 5.3 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

How do I patch CVE-2020-13956?

Patch guidance is available from apache security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2020-13956.

CVE-2020-13956 - remediation guidance & executive summary

Q: Which products are affected by CVE-2020-13956?

31 products: apache httpclient, apache httpclient, quarkus quarkus, oracle data integrator, oracle data integrator, and 26 more.

Description

Apache HttpClient versions prior to version 4.5.13 and 5.0.3 can misinterpret malformed authority component in request URIs passed to the library as java.net.URI object and pick the wrong target host for request execution.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: low
Availability: none
Weaknesses: NVD-CWE-noinfo

Metadata

Primary Vendor: APACHE
Published: 12/2/2020
Last Modified: 12/1/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

apache : httpclientapache : httpclientquarkus : quarkusoracle : data_integratororacle : data_integratororacle : jd_edwards_enterpriseone_orchestratororacle : jd_edwards_enterpriseone_toolsoracle : nosql_databaseoracle : peoplesoft_enterprise_peopletoolsoracle : peoplesoft_enterprise_peopletoolsoracle : peoplesoft_enterprise_pt_peopletoolsoracle : peoplesoft_enterprise_pt_peopletoolsoracle : peoplesoft_enterprise_pt_peopletoolsoracle : primavera_unifieroracle : primavera_unifieroracle : primavera_unifieroracle : primavera_unifieroracle : primavera_unifieroracle : primavera_unifieroracle : retail_customer_management_and_segmentation_foundationoracle : spatial_studiooracle : sql_developernetapp : active_iq_unified_managernetapp : active_iq_unified_managernetapp : active_iq_unified_managernetapp : snapcenteroracle : commerce_guided_searchoracle : communications_cloud_native_core_service_communication_proxyoracle : sql_developeroracle : weblogic_serveroracle : weblogic_server

Remediation Guidance

Executive Summary

View on NIST NVD