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Vulnerability record · CVE-2017-14063 · published 31 August 2017

CVE-2017-14063: Asynchttpclient project async-http-client improper input validation vulnerability

Asynchttpclient Project · Async Http Client

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.

7.5 CVSS 3.0 High EPSS 3.0% · top 13.0% CWE-20 · Improper input validation
7.5CVSS 3.0 base score, v2 5.0
3.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
56References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://openwall.com/lists/oss-security/2017/08/31/4 Mailing ListPatchThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:2669 Third Party Advisory
https://github.com/AsyncHttpClient/async-http-client/issues/1455 Issue TrackingPatchThird Party Advisory
https://lists.apache.org/thread.html/r04b15fd898a6b1612153543375daaa8145a0fd1804ec9fa2e0d95c97%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r0a6b6429a7558051dbb70bd06584b4b1c334a80ec9203d3d39b7045a%40%3Ccommits.tez.apache.o
https://lists.apache.org/thread.html/r14a74d204f285dd3a4fa203de6dbb4e741ddb7fdfff7915590e5b3db%40%3Cdev.tez.apache.org%3
https://lists.apache.org/thread.html/r3df4b7ccc363b4850a24842138117aa4451b875bc4773a845b828fc6%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r41a0e2c36f7d1854a4d56cb1e4aa720ef501782d887ece1c9b1e2d60%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r4ebb9596d890f3528630492bd78237b3eef06f093bac238a0da9b630%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r5b8666c4414500ff6e993bfa69cb6afa19b1b67c4585a045c0c21662%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r5f07c30721503d4c02d5451f77a611a1a0bb2a94ddcdf071c9485ea3%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r5f794dc07913c5f2ec08f540813b40e61b562d36f8b1f916e8705c56%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r683d78c6d7a15659f2bb82dd4120dab8c45a870eaa7f1a15cce4ed3b%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r7046a51116207588e36ca8c2e291327e391dae40712d267117475a98%40%3Cdev.tez.apache.org%3
https://lists.apache.org/thread.html/r7879a48644f708be0529bd39f0679ad3ad951f3dc24442878a008fd8%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r79d9bab405414af45568c4683386f5e9fd02c10ca87ffa2ee33512dc%40%3Ccommits.pulsar.apach
https://lists.apache.org/thread.html/r868875e67494a18d31e88cba2672f45c3fc6708ffdde445723004da4%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r9ea5d489e004b40baf73880c4e11dd4de24b799d15e091e1f4017108%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/rbbad61e1ba5b21e234a6664963618acfee237af754eb20300d938e1e%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/rbc4fbb06ccb10e26e6064f57f6bd4935eabe2d18a0cb9a7183699396%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/rc550b8955b37b40fee18db99f167337c41c930d8c3763b9631e01dda%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/rcb46acc25917e01ebecca132e870da9ab935d5796686ed8a2785b026%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/rd0e44e8ef71eeaaa3cf3d1b8b41eb25894372e2995ec908ce7624d26%40%3Ccommits.pulsar.apach
https://lists.apache.org/thread.html/re2510852c4a1f635b14b35e5dfd7597076928e723ab08559ede575e0%40%3Ccommits.pulsar.apach
https://lists.apache.org/thread.html/re7367895ccbf64523efcd39a9181baf2eaa30b069d8d6496852fba56%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/rfaa4d578587f52a9c4d176af516a681a712c664e3be440a4163691d5%40%3Ccommits.pulsar.apach
https://lists.apache.org/thread.html/rfd823a733b02cffbef5a69953fdcbed2d1d0afad5e1ea4e96ff6bf0a%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/rfe55d83e4070bcc9285bbbf6bc39635dbcbba6d14d89aab0f339c83a%40%3Ccommits.tez.apache.o
http://openwall.com/lists/oss-security/2017/08/31/4 Mailing ListPatchThird Party Advisory
https://access.redhat.com/errata/RHSA-2018:2669 Third Party Advisory
https://github.com/AsyncHttpClient/async-http-client/issues/1455 Issue TrackingPatchThird Party Advisory
https://lists.apache.org/thread.html/r04b15fd898a6b1612153543375daaa8145a0fd1804ec9fa2e0d95c97%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r0a6b6429a7558051dbb70bd06584b4b1c334a80ec9203d3d39b7045a%40%3Ccommits.tez.apache.o
https://lists.apache.org/thread.html/r14a74d204f285dd3a4fa203de6dbb4e741ddb7fdfff7915590e5b3db%40%3Cdev.tez.apache.org%3
https://lists.apache.org/thread.html/r3df4b7ccc363b4850a24842138117aa4451b875bc4773a845b828fc6%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r41a0e2c36f7d1854a4d56cb1e4aa720ef501782d887ece1c9b1e2d60%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r4ebb9596d890f3528630492bd78237b3eef06f093bac238a0da9b630%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r5b8666c4414500ff6e993bfa69cb6afa19b1b67c4585a045c0c21662%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r5f07c30721503d4c02d5451f77a611a1a0bb2a94ddcdf071c9485ea3%40%3Cissues.tez.apache.or
https://lists.apache.org/thread.html/r5f794dc07913c5f2ec08f540813b40e61b562d36f8b1f916e8705c56%40%3Cissues.tez.apache.or

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Source: NIST National Vulnerability Database (record CVE-2017-14063), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.