CVE-2026-85716
AsyncHttpClient: SCRAM and Digest mutual-authentication responses are not verified
At a glance
- Source
- NVD
- EPSS
- EPSS 0.41 % · percentile 35 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Awaiting Analysis
Description
The 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.
Weaknesses (CWE)
References
- https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-fj9w-c36g-h5x8
- https://github.com/AsyncHttpClient/async-http-client/pull/2235
- https://github.com/AsyncHttpClient/async-http-client/commit/10b3db9910f0bbad2ea3dc7c7553bae12bc4a5e4
- https://github.com/AsyncHttpClient/async-http-client/commit/685173afea07892462071d966ef6ce5c88cbc66f
- https://github.com/AsyncHttpClient/async-http-client/commit/7fe8700fd5b46c668cee7774624f36b87b9dd32a
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | LOW 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N | GitHub_M |
| CVSS 3.1 | LOW 3.7 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N | NVD · security-advisories@github.com (Secondary) |
Advisories
- GHSA-fj9w-c36g-h5x8 — AsyncHttpClient doesn't verify SCRAM and Digest mutual-authentication responses
European references
- ENISA EUVD · EUVD-2026-82313
- GCVE · GCVE-0-2026-85716
Affected products
| Product | Versions |
|---|---|
| AsyncHttpClient · async-http-client | affected >= 3.0.8, < 3.0.12 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |