CVE-2026-107232 (GCVE-0-2026-107232)

Vulnerability from cvelistv5 – Published: 2026-10-07 21:09 – Updated: 2026-10-07 21:09
VLAI
Title
AsyncHttpClient: Origin credentials sent in cleartext to a proxy that rejects the CONNECT
Summary
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.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-319 - Cleartext Transmission of Sensitive Information
  • CWE-441 - Unintended Proxy or Intermediary ('Confused Deputy')
  • CWE-522 - Insufficiently Protected Credentials
Assigner
References
Impacted products
Vendor Product Version CPE status
AsyncHttpClient async-http-client Affected: >= 3.0.0, < 3.0.12
Affected: >= 2.0.0, < 2.16.1
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      "title": "AsyncHttpClient: Origin credentials sent in cleartext to a proxy that rejects the CONNECT"
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          }
        ],
        "id": "CVE-2026-107232",
        "lastModified": "2026-10-07T22:17:03.497",
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}



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