Read the docs
TI-2026-69313 Aliases CVE-2026-107229

AsyncHttpClient cookie store lets one origin set cookies for another

Priority LOW 18CWE-1275Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Impact type
Spoofing
Confidentiality · integrity · availability
None · Low · None
Fix status
Partial Red Hat: 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-384.

Summary

AsyncHttpClient async-http-client from 3.0.11 before 3.0.14 and from 2.16.0 through 2.16.1 incompletely validates cookie Domain attributes in ThreadSafeCookieStore. Missing public-suffix and IP-address checks let one origin store a cookie that is later sent to another origin, which is a session fixation risk (CWE-384). Applications that share one client across trust domains can receive attacker-injected cookies.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00261 17th percentileScored 2026-11-07
Fix Partial async-http-client (AsyncHttpClient): 3.0.14Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AsyncHttpClientasync-http-client3.0.11 to before 3.0.14; 2.16.0 – 2.16.13.0.14Patch availableCNA
  • async-http-client VendorAsyncHttpClient Affected 3.0.11 to before 3.0.14; 2.16.0 – 2.16.1 Fixed in 3.0.14 Patch available CNA

Remediation

Upgrade async-http-client to version 3.0.14, which fixes this issue. Red Hat plans no fix for Red Hat Fuse 7.

Written with Claude Haiku 5.5 from the sources below · 2026-11-04

  • Fix · CNA async-http-client (AsyncHttpClient) Fixed in 3.0.14

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Fuse 7AffectedNo fix planned: Out of support scope

Timeline

  1. 2026-10-07 Threatist record created from CVE-2026-107229
  2. 2026-10-08 CISA SSVC decision points changed
  3. 2026-11-04 Affected versions changed · Red Hat
  4. 2026-11-04 CVSS score added · Red Hat

References

  • TI-2024-36149 AsyncHttpClient (AHC) library's `CookieStore` replaces explicitly defined `Cookie`s CVSS 4.0CRITICAL 9.2
  • TI-2026-69321 Cross-host replay in AsyncHttpClient leaks credentials to new host CVSS 4.0CRITICAL 9.4
  • TI-2026-69315 AsyncHttpClient sends passwords in cleartext after Digest downgrade CVSS 4.0HIGH 8.7
  • TI-2026-58825 AsyncHttpClient: Unbounded HTTP/1.1 response decompression enables a decompression-bomb denial of service CVSS 3.1HIGH 7.5
  • TI-2026-69311 Unbounded WebSocket decompression in AsyncHttpClient enables DoS CVSS 3.1HIGH 7.5
  • TI-2026-58823 AsyncHttpClient: SOCKS proxy credentials sent to the origin server over plaintext HTTP CVSS 3.1HIGH 7.5
See all 23 →

Sources