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TI-2026-71226 Aliases CVE-2026-107226

AsyncHttpClient lets plaintext HTTP overwrite Secure cookies

Priority LOW 30CWE-384Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-384 and CWE-693.

Summary

AsyncHttpClient from 2.1.0 through 2.16.1 and from 3.0.0 before 3.0.14 has a flaw in its default ThreadSafeCookieStore. Because it does not retain whether a Set-Cookie response used a secure transport, it accepts Secure cookies received over plaintext and lets insecure cookies overwrite or delete existing Secure cookies (CWE-384). An attacker who controls a plaintext same-site response can plant, replace or remove cookies later sent to an HTTPS origin, enabling session fixation.

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. From 2.1.0 until 3.0.14, the default ThreadSafeCookieStore does not retain whether a Set-Cookie response used a secure transport. It accepts Secure cookies received over plaintext and permits insecure cookies to overlay or delete existing Secure cookies with matching scope. An attacker controlling a plaintext same-site response can consequently plant, replace, or remove cookie state later sent to an HTTPS origin, enabling session fixation, CSRF-token replacement, or loss of security-relevant state. This issue is fixed in version 3.0.14.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00294 22nd percentileScored 2026-11-07
Fix Partial async-http-client (AsyncHttpClient): 3.0.14org.asynchttpclient:async-http-client (Maven): 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-client2.1.0 – 2.16.1; 3.0.0 to before 3.0.143.0.14Patch availableCNA
—org.asynchttpclient:async-http-client (Maven)3.0.0 to before 3.0.143.0.14Patch availableGHSA-p2jm-6hj6-9rjg
—org.asynchttpclient:async-http-client (Maven)2.1.0 – 2.16.1—No fix listedGHSA-p2jm-6hj6-9rjg
  • async-http-client VendorAsyncHttpClient Affected 2.1.0 – 2.16.1; 3.0.0 to before 3.0.14 Fixed in 3.0.14 Patch available CNA
  • org.asynchttpclient:async-http-client (Maven) Vendor— Affected 3.0.0 to before 3.0.14 Fixed in 3.0.14 Patch available GHSA-p2jm-6hj6-9rjg
  • org.asynchttpclient:async-http-client (Maven) Vendor— Affected 2.1.0 – 2.16.1 Fixed in — No fix listed GHSA-p2jm-6hj6-9rjg

Remediation

Upgrade async-http-client to version 3.0.14. The sources list no fixed version for org.asynchttpclient:async-http-client in the 2.1.0 through 2.16.1 range. Red Hat lists Red Hat Fuse 7 as affected with no fix planned.

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

  • Fix · CNA async-http-client (AsyncHttpClient) Fixed in 3.0.14
  • Fix · GHSA-p2jm-6hj6-9rjg org.asynchttpclient:async-http-client (Maven) Fixed in 3.0.14 Advisory →

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. 2026-10-12 Threatist record created from CVE-2026-107226
  2. 2026-10-13 Priority changed: MEDIUM → LOW
  3. 2026-10-13 CISA SSVC decision points changed
  4. 2026-11-03 Affected versions changed · Red Hat
  5. 2026-11-03 CVSS score added · Red Hat

References

Other 4

  • 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