CVE-2026-107232

NameCVE-2026-107232
DescriptionThe 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.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
async-http-client (PTS)bookworm (security)2.12.3-1+deb12u1vulnerable
sid, bookworm2.12.3-1vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
async-http-clientsource(unstable)(unfixed)

Notes

https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-v9f2-7rw2-gr2x
https://github.com/AsyncHttpClient/async-http-client/commit/3a625cb892233c0a6653ac68823a25ffbc80f393 (async-http-client-project-2.16.1)

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