CVE-2026-107282AsyncHttpClient: Replay to a different host sends the original host request and credentials to the new host
Updated under an hour ago ()
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It affects AsyncHttpClient async-http-client. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.19%, higher than 8% of scored CVEs.
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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.
- CVSS
- 9.4 CRITICAL (v4.0, CNA)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
- Weakness (CWE)
- CWE-319, CWE-441, CWE-522
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.19% (percentile 8)
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 10, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
AsyncHttpClient async-http-client asynchttpclient:async_http_client (from the name) | from 3.0.0, < 3.0.13; from 2.0.0, < 2.16.1 | CNA record |
References
- https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-jmqq-x5g9-9p2wx-refsource-confirm
- https://github.com/AsyncHttpClient/async-http-client/commit/15b254514a411623e5f1d8c99ea79c0f82f8a466x-refsource-misc
- https://github.com/AsyncHttpClient/async-http-client/commit/bbc31aed3b044f9f7a126cf689a8c8d7ad2ae1cbx-refsource-misc
- https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1x-refsource-misc
- https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.