# AsyncHttpClient doesn't verify SCRAM and Digest mutual-authentication responses

Advisory record · `GHSA-fj9w-c36g-h5x8`

- **Identifiers:** `GHSA-fj9w-c36g-h5x8` · `CVE-2026-85716`
- **State:** Confirmed
- **Severity:** CVSS 3.7 Low
- **Critical:** No
- **Weakness (CWE):** [CWE-287](https://cwe.mitre.org/data/definitions/287.html) · [CWE-390](https://cwe.mitre.org/data/definitions/390.html)
- **Tags:** [Authentication bypass](https://agentprime.io/advisories/tag/auth-bypass.md) · [CWE-390](https://agentprime.io/advisories/tag/cwe-390.md)
- **Published:** 17 Sept 2026
- **Updated:** 17 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 17 Sept 2026, 17:18 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.asynchttpclient:async-http-client` (Maven): affected `>=3.0.8, <3.0.12`; fixed in `3.0.12`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 3.7 Low, CVSS 3.1: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0041, the 35th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:16 UTC: First seen by agentprime
- 31 Oct 2026, 14:16 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-fj9w-c36g-h5x8)

## Sources

- [GitHub Advisory Database: GHSA-fj9w-c36g-h5x8](https://github.com/advisories/GHSA-fj9w-c36g-h5x8)
- [OSV: GHSA-fj9w-c36g-h5x8](https://osv.dev/vulnerability/GHSA-fj9w-c36g-h5x8)
- <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>
- <https://github.com/AsyncHttpClient/async-http-client>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-fj9w-c36g-h5x8>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-fj9w-c36g-h5x8/>. Everything for agents: <https://agentprime.io/llms.txt>.