CVE catalog

CVE-2026-107229

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.16.0 until 3.0.14, ThreadSafeCookieStore incompletely valid

[CVE catalog]

Severity
Medium · CVSS 4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.26% · Oct 25, 2026

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.16.0 until 3.0.14, ThreadSafeCookieStore incompletely validates cookie Domain attributes. Missing private-section and default public-suffix rules, absent A-label normalization, locale-sensitive lowercasing, public-suffix host-only handling, and numeric or IP host checks allow one origin to store a cookie later sent to another origin. Applications sharing one client across trust domains can therefore receive attacker-injected cookies and may be exposed to session fixation. This issue is fixed in version 3.0.14.

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]