CVE-2026-107285AsyncHttpClient: WebSocket proxy credentials sent to the origin server over a CONNECT tunnel
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.
No exploitation reported and no EPSS estimate yet.
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The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.12 and 2.16.1, a proxied ws request is carried through CONNECT, but NettyRequestFactory.newNettyRequest and requestUri decide whether to attach proxy authentication and an absolute-form target only from whether the URI is secure. Because ws is not marked secure, the tunneled WebSocket upgrade sent to the origin includes the proxy's Proxy-Authorization value. Basic credentials are directly recoverable and Digest responses can be replayed or cracked offline. This issue is fixed in versions 3.0.12 and 2.16.1.
- CVSS
- 5.9 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weakness (CWE)
- CWE-319, CWE-522
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 8, 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, <3.0.12; from 2.0.0, < 2.16.1 | CNA record |
References
- https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-3wp9-xfwm-rjjfx-refsource-confirm
- https://github.com/AsyncHttpClient/async-http-client/commit/6e9cb75a9b7259353f983fc90ca28b1da3742e18x-refsource-misc
- https://github.com/AsyncHttpClient/async-http-client/commit/c4feab0f7f86d61505a48e40d383c8a375a22e18x-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-3.0.12x-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.