AsyncHttpClient: WebSocket proxy credentials sent to the origin server over a CONNECT tunnel

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-107285
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-07 22:17:04 UTC
Updated2026-10-07 22:17:04 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v3.1 5.9 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Problem Types: CWE-319 | CWE-522 | CWE-319 CWE-319: Cleartext Transmission of Sensitive Information | CWE-522 CWE-522: Insufficiently Protected Credentials

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
3.1CNADECLARED5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA AsyncHttpClient Async-http-client affected >= 3.0.0, <3.0.12 Not specified
CNA AsyncHttpClient Async-http-client affected >= 2.0.0, < 2.16.1 Not specified

References

ReferenceSourceLinkTags
github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-cli... [email protected] github.com
github.com/AsyncHttpClient/async-http-client/commit/6e9cb75a9b7259353f98... [email protected] github.com
github.com/AsyncHttpClient/async-http-client/commit/c4feab0f7f86d61505a4... [email protected] github.com
github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-3w... [email protected] github.com
github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-cli... [email protected] github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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