AsyncHttpClient: SCRAM and Digest mutual-authentication responses are not verified

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-85716
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-17 17:16:50 UTC
Updated2026-09-18 15:17:14 UTC
DescriptionThe AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 3.0.8 until 3.0.12, processScramAuthenticationInfo and processAuthenticationInfo compute the SCRAM ServerSignature or Digest rspauth verification result but log a mismatch and still deliver the response as authenticated. On a non-TLS or compromised transport, a peer that has not proved knowledge of the shared secret can therefore be accepted as the server. The fix rejects a present invalid value and computes Digest rspauth from the Authorization parameters actually sent, but verification remains unenforced when the value is absent, the sent parameters cannot be recovered, or Digest uses qop=auth-int. This issue is fixed in version 3.0.12.

Risk And Classification

Primary CVSS: v3.1 3.7 LOW from [email protected]

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

EPSS: 0.003160000 probability, percentile 0.247060000 (date 2026-09-18)

Problem Types: CWE-287 | CWE-390 | CWE-287 CWE-287: Improper Authentication | CWE-390 CWE-390: Detection of Error Condition Without Action

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
3.1CNADECLARED3.7LOWCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA AsyncHttpClient Async-http-client affected >= 3.0.8, < 3.0.12 Not specified

References

ReferenceSourceLinkTags
github.com/AsyncHttpClient/async-http-client/commit/10b3db9910f0bbad2ea3... [email protected] github.com
github.com/AsyncHttpClient/async-http-client/pull/2235 [email protected] github.com
github.com/AsyncHttpClient/async-http-client/commit/7fe8700fd5b46c668cee... [email protected] github.com
github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fj... [email protected] github.com
github.com/AsyncHttpClient/async-http-client/commit/685173afea0789246207... [email protected] github.com
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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