Async Http Client (aka async-http-client) before 2.0.35 can be tricked into connecting to a host different from the one extracted by java.net.URI if a '?' character occurs in a fragment identifier. Similar bugs were previously identified in cURL (CVE-2016-8624) and Oracle Java 8 java.net.URL.
CVE-2017-14063
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 3.0%, top 14% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 86.1%
- KEV
- Not listed
Published
August 31, 2017
Last Modified
May 13, 2026
References (56)
- cve@mitrehttp://openwall.com/lists/oss-security/2017/08/31/4
- cve@mitrehttps://access.redhat.com/errata/RHSA-2018:2669
- cve@mitrehttps://github.com/AsyncHttpClient/async-http-client/issues/1455
- cve@mitrehttps://lists.apache.org/thread.html/r04b15fd898a6b1612153543375daaa8145a0fd1804ec9fa2e0d95c97%40%3Cissues.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r0a6b6429a7558051dbb70bd06584b4b1c334a80ec9203d3d39b7045a%40%3Ccommits.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r14a74d204f285dd3a4fa203de6dbb4e741ddb7fdfff7915590e5b3db%40%3Cdev.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r3df4b7ccc363b4850a24842138117aa4451b875bc4773a845b828fc6%40%3Cissues.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r41a0e2c36f7d1854a4d56cb1e4aa720ef501782d887ece1c9b1e2d60%40%3Cissues.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r4ebb9596d890f3528630492bd78237b3eef06f093bac238a0da9b630%40%3Cissues.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r5b8666c4414500ff6e993bfa69cb6afa19b1b67c4585a045c0c21662%40%3Cissues.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r5f07c30721503d4c02d5451f77a611a1a0bb2a94ddcdf071c9485ea3%40%3Cissues.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r5f794dc07913c5f2ec08f540813b40e61b562d36f8b1f916e8705c56%40%3Cissues.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r683d78c6d7a15659f2bb82dd4120dab8c45a870eaa7f1a15cce4ed3b%40%3Cissues.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r7046a51116207588e36ca8c2e291327e391dae40712d267117475a98%40%3Cdev.tez.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r7879a48644f708be0529bd39f0679ad3ad951f3dc24442878a008fd8%40%3Cissues.tez.apache.org%3E
Vendor Advisories for CVE-2017-14063(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(1)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | async-http-client | 2018-09-11 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.asynchttpclient:async-http-client | 2.0.0 ... 2.0.9 (71 versions) | 2.0.35 | — |
Data Freshness Timeline
(refreshed 13× in last 7d / 40× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 22:06 UTCEG score recompute
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Related CVEs(same vendor)
Frequently asked(5)
What is CVE-2017-14063?
When was CVE-2017-14063 disclosed?
Is CVE-2017-14063 actively exploited?
What is the CVSS score of CVE-2017-14063?
How do I remediate CVE-2017-14063?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2017-14063
Is Your Infrastructure Affected by CVE-2017-14063?
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