CVE-2026-107231

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{"bugzilla": {"description": "org.asynchttpclient/async-http-client: async-http-client: Credential exposure via authentication downgrade", "id": "2547724", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2547724"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-303", "details": ["A flaw was found in AsyncHttpClient. The library's challenge parser inadvertently handles an HTTP Digest authentication challenge missing a valid nonce (a one-time security token) as HTTP Basic authentication. A malicious origin server or proxy can exploit this vulnerability by returning a Digest challenge with an omitted or empty nonce, causing the client to downgrade authentication and resend credentials using easily reversible Basic authentication. This issue leads to sensitive credential exposure and information disclosure."], "name": "CVE-2026-107231", "package_state": [{"cpe": "cpe:/a:redhat:jboss_fuse:7", "fix_state": "Affected", "package_name": "async-http-client", "product_name": "Red Hat Fuse 7"}], "public_date": "2026-10-07T21:06:26Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-107231\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-107231\nhttps://github.com/AsyncHttpClient/async-http-client/commit/8376866aa9b5a7653ad19db9d472692f875caa83\nhttps://github.com/AsyncHttpClient/async-http-client/commit/c8d639bf6ac341d377d610a93570bcd15565f1a6\nhttps://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1\nhttps://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.13\nhttps://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-rqf5-2wxv-rjf4"], "threat_severity": "Important"}

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