CVE-2026-107282CWE-319CWE-441CWE-522

CVE-2026-107282

published October 8, 2026

CVSS
9.4
EPSS
0%
Percentile
8.0
In the wild
Unconfirmed
What it is

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, cross-host request replay updates the current request but leaves the target request and related proxy context pointing at the original origin. Connection-pool selection, CONNECT handling, realm selection, and TLS setup can consequently send the original host's path, Host header, Authorization credentials, or plaintext request to the replay destination. Documented ResponseFilter failover and retry paths can trigger the replay. This issue is fixed in versions 3.0.13 and 2.16.1.

The record
Technical detail
CVSS
9.4 · NONE
CVSS v4.0
9.4 · CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
EPSS
0.00189 · 8.0th percentile
Weaknesses
CWE-319 · Cleartext Transmission of Sensitive Information; CWE-441 · Unintended Proxy or Intermediary ('Confused Deputy'); CWE-522 · Insufficiently Protected Credentials
Published
2026-10-08T02:17Z
References (5)
https://github.com/AsyncHttpClient/async-http-client/commit/15b254514a411623e5f1d8c99ea79c0f82f8a466 · [email protected]https://github.com/AsyncHttpClient/async-http-client/commit/bbc31aed3b044f9f7a126cf689a8c8d7ad2ae1cb · [email protected]https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1 · [email protected]https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13 · [email protected]https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-jmqq-x5g9-9p2w · [email protected]
EPSS history
Timeline
  • 09 OCT 03:26Z
    EPSS moved — → 0%
    epss
  • 07 OCT 21:21Z
    AsyncHttpClient: Replay to a different host sends the original host request and credentials to the new host
    cvelistv5
  • 07 OCT 21:21Z
    AsyncHttpClient: Replay to a different host sends the original host request and credentials to the new host
    cvelistv5