CVE catalog

CVE-2026-107232

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 a

[CVE catalog]

Severity
High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.21% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianasync-http-clientsid2.12.3-1vulnerable
Debianasync-http-clientbookworm2.12.3-1vulnerable
Debianasync-http-clientbookworm-security2.12.3-1+deb12u1vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianasync-http-clientsourcesid(unfixed)not yet assignedNot reported[1150331]
Debianasync-http-clientsourcebookworm(unfixed)not yet assignedNot reported[1150331]

[Debian bug #1150331]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [libasync-http-client-java]Affected

    Source package: [async-http-client]

    Details (4)

    • 2.12.3-1 · all · bookworm

      Affected

      nvd · async-http-client · debian · bookworm; nvd · async-http-client · debian · 12

    • 2.12.3-1 · all · bookworm

      Affected

      nvd · async-http-client · debian · bookworm; nvd · async-http-client · debian · 12

    • 2.12.3-1+deb12u1 · all · bookworm-security

      Affected

      nvd · async-http-client · debian · bookworm; nvd · async-http-client · debian · 12

    • 2.12.3-1+deb12u1 · all · bookworm-security

      Affected

      nvd · async-http-client · debian · bookworm; nvd · async-http-client · debian · 12

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]