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Async Http Client (aka AHC or async-http-client) before 1.9.0 skips X.509 certificate verification unless both a keyStore location and a trustStore location are explicitly set, which allows man-in-the-middle attackers to spoof HTTPS servers by presenting an arbitrary certificate during use of a typical AHC configuration, as demonstrated by a configuration that does not send client certificates.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade async-http-client | Jul 30, 2024 | Jun 24, 2015 |
| Ubuntu | — | Upgrade async-http-client (Ubuntu Pro) | Nov 19, 2024 | Jun 24, 2015 |
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