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TI-2026-69319 Aliases CVE-2026-107281

Connection reuse in AsyncHttpClient runs requests as another identity

Priority LOW 34CWE-346Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-346.

Summary

AsyncHttpClient async-http-client from 3.0.0 before 3.0.13 and from 2.0.0 before 2.16.1 is affected. Its HTTP/1.1 connection pool key omits the authenticated principal for NTLM and Negotiate authentication, so a pooled connection is reused across identities (CWE-346). A remote attacker with low privileges can have a later request run as the identity of an earlier authenticated request on the same pooled socket. Basic and Digest are not affected.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.13 and 2.16.1, the HTTP/1.1 connection-pool key excludes the authenticated principal for connection-oriented NTLM and Negotiate authentication. A pooled socket authenticated for one request can be reused by a request carrying another principal, and the server executes that later request as the first identity. Basic and Digest are not affected because they authenticate each request. This issue is fixed in versions 3.0.13 and 2.16.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00171 6th percentileScored 2026-11-07
Fix Partial async-http-client (AsyncHttpClient): 3.0.13, 2.16.1Red Hat: 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

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-client3.0.0 to before 3.0.13; 2.0.0 to before 2.16.13.0.13, 2.16.1Patch availableCNA
  • async-http-client VendorAsyncHttpClient Affected 3.0.0 to before 3.0.13; 2.0.0 to before 2.16.1 Fixed in 3.0.13, 2.16.1 Patch available CNA

Remediation

Upgrade async-http-client to version 3.0.13 or 2.16.1, which fix the flaw. The sources list no fixed version for Red Hat Fuse 7.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

  • Fix · CNA async-http-client (AsyncHttpClient) Fixed in 3.0.13, 2.16.1

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-2026-107281
  2. 2026-10-08 CISA SSVC decision points changed
  3. 2026-10-08 Priority changed: MEDIUM → LOW
  4. 2026-11-03 Affected versions changed · Red Hat
  5. 2026-11-03 CVSS score added · Red Hat

References

Other 5

  • 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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences