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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-107232

AsyncHttpClient: Origin credentials sent in cleartext to a proxy that rejects the CONNECT

Description

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.12 on 3.x and 2.16.1 on 2.x, the client infers that an HTTP proxy tunnel exists from the last request method rather than the CONNECT result. After a proxy rejects CONNECT, redirect or authentication handlers can write an origin request and its Authorization credentials onto the still-plaintext proxy connection. Basic credentials can be recovered directly, while NTLM responses may be cracked or relayed. This issue is fixed in versions 3.0.12 and 2.16.1.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

AsyncHttpClient async-http-client

  • >= 3.0.0, < 3.0.12affected
  • >= 2.0.0, < 2.16.1affected

References