Medium 5.3Published Dec 2, 2020

CVE-2020-13956Apache 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…

Updated under an hour ago (Oct 27, 2026, 1:10 PM ET)

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It affects apache httpclient and 16 other products. Add what you run to find out whether that includes you.

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Every CVE for apache httpclient

Exploited in the last 30 days

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: 5.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE): CWE-20
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: apache
NVD analysis: Modified
Record last updated: Oct 8, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

apache httpclient apache:httpclient	before 4.5.13; from 5.0.0 before 5.0.3	NVD
quarkus quarkus quarkus:quarkus	before 1.7.6	NVD
oracle data_integrator oracle:data_integrator	12.2.1.3.0; 12.2.1.4.0	NVD
oracle jd_edwards_enterpriseone_orchestrator oracle:jd_edwards_enterpriseone_orchestrator	before 9.2.6.0	NVD
oracle jd_edwards_enterpriseone_tools oracle:jd_edwards_enterpriseone_tools	before 9.2.6.0	NVD
oracle nosql_database oracle:nosql_database	before 20.3	NVD
oracle peoplesoft_enterprise_peopletools oracle:peoplesoft_enterprise_peopletools	8.57; 8.58	NVD
oracle peoplesoft_enterprise_pt_peopletools oracle:peoplesoft_enterprise_pt_peopletools	8.57; 8.58; 8.59	NVD
oracle primavera_unifier oracle:primavera_unifier	from 17.7 through 17.12; 16.1; 16.2; 18.8; 19.12; 20.12	NVD
oracle retail_customer_management_and_segmentation_foundation oracle:retail_customer_management_and_segmentation_foundation	from 16.0 through 19.0	NVD
1–10 of 17

References

References

https://lists.apache.org/thread.html/r6dab7da30f8bf075f79ee189e33b45a197502e2676481bb8787fc0d7%40%3Cdev.hc.apache.org%3E	x-refsource-misc
https://lists.apache.org/thread.html/rf7ca60f78f05b772cc07d27e31bcd112f9910a05caf9095e38ee150f%40%3Cdev.ranger.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rcced7ed3237c29cd19c1e9bf465d0038b8b2e967b99fc283db7ca553%40%3Cdev.ranger.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/r63296c45d5d84447babaf39bd1487329d8a80d8d563e67a4b6f3d8a7%40%3Cdev.ranger.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/r12cb62751b35bdcda0ae2a08b67877d665a1f4d41eee0fa7367169e0%40%3Cdev.ranger.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/r34178ab6ef106bc940665fd3f4ba5026fac3603b3fa2aefafa0b619d%40%3Cdev.ranger.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rb725052404fabffbe093c83b2c46f3f87e12c3193a82379afbc529f8%40%3Csolr-user.lucene.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rb33212dab7beccaf1ffef9b88610047c644f644c7a0ebdc44d77e381%40%3Ccommits.turbine.apache.org%3E	mailing-list, x-refsource-mlist
https://lists.apache.org/thread.html/rfc00884c7b7ca878297bffe45fcb742c362b00b26ba37070706d44c3%40%3Cissues.hive.apache.org%3E	mailing-list, x-refsource-mlist
1–10 of 25

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.