{"id":"CVE-2026-107232","summary":"AsyncHttpClient: Origin credentials sent in cleartext to a proxy that rejects the CONNECT","details":"The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. Prior to 3.0.12 on 3.x and 2.16.1 on 2.x, the client infers that an HTTP proxy tunnel exists from the last request method rather than the CONNECT result. After a proxy rejects CONNECT, redirect or authentication handlers can write an origin request and its Authorization credentials onto the still-plaintext proxy connection. Basic credentials can be recovered directly, while NTLM responses may be cracked or relayed. This issue is fixed in versions 3.0.12 and 2.16.1.","aliases":["GHSA-v9f2-7rw2-gr2x"],"modified":"2026-10-09T02:49:20.829212425Z","published":"2026-10-07T21:09:03.284Z","database_specific":{"cwe_ids":["CWE-319","CWE-441","CWE-522"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107232.json","cna_assigner":"GitHub_M"},"references":[{"type":"WEB","url":"https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-2.16.1"},{"type":"WEB","url":"https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.12"},{"type":"ADVISORY","url":"https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-v9f2-7rw2-gr2x"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/107xxx/CVE-2026-107232.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107232"},{"type":"FIX","url":"https://github.com/AsyncHttpClient/async-http-client/commit/3a625cb892233c0a6653ac68823a25ffbc80f393"},{"type":"FIX","url":"https://github.com/AsyncHttpClient/async-http-client/commit/a87e7b8c81a6f66a4ce23cd43097fbadd1c788ea"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/asynchttpclient/async-http-client","events":[{"introduced":"9a771c7b40e716ca77a3cad691545b29ff64bfd3"},{"introduced":"b60e5a0d7d989e4a24c13e03ba786c375b727448"},{"fixed":"c07038b44e5206375662b46859672e8f1df9f05a"},{"fixed":"d1f0ccec417092098d40242fee7dfac84bb3c21f"},{"fixed":"3a625cb892233c0a6653ac68823a25ffbc80f393"},{"fixed":"a87e7b8c81a6f66a4ce23cd43097fbadd1c788ea"}],"database_specific":{"source":["AFFECTED_FIELD","REFERENCES"],"extracted_events":[{"introduced":"3.0.0"},{"fixed":"3.0.12"},{"introduced":"2.0.0"},{"fixed":"2.16.1"}]}}],"versions":["async-http-client-project-2.16.0","async-http-client-project-2.15.0","async-http-client-project-3.0.11","async-http-client-project-3.0.10","async-http-client-project-3.0.9","async-http-client-project-2.14.5","async-http-client-project-2.12.4","async-http-client-project-3.0.8","async-http-client-project-3.0.7","async-http-client-project-3.0.6","async-http-client-project-3.0.5","async-http-client-project-3.0.4","async-http-client-project-3.0.3","async-http-client-project-3.0.2","async-http-client-project-2.12.3","async-http-client-project-3.0.1","async-http-client-project-3.0.0","async-http-client-project-2.12.2","async-http-client-project-2.12.1","async-http-client-project-2.12.0","async-http-client-project-2.11.0","async-http-client-project-2.10.5","async-http-client-project-2.10.4","async-http-client-project-2.10.3","async-http-client-project-2.10.2","async-http-client-project-2.10.1","async-http-client-project-2.10.0","async-http-client-project-2.9.0","async-http-client-project-2.8.1","async-http-client-project-2.8.0","async-http-client-project-2.7.0","async-http-client-project-2.6.0","async-http-client-project-2.5.4","async-http-client-project-2.5.3","async-http-client-project-2.5.2","async-http-client-project-2.5.1","async-http-client-project-2.5.0","async-http-client-project-2.4.9","async-http-client-project-2.4.8","async-http-client-project-2.4.7","async-http-client-project-2.4.6","async-http-client-project-2.4.5","async-http-client-project-2.4.4","async-http-client-project-2.4.3","async-http-client-project-2.4.2","async-http-client-project-2.4.1","async-http-client-project-2.4.0","async-http-client-project-2.3.0","async-http-client-project-2.2.1","async-http-client-project-2.2.0","async-http-client-project-2.1.2","async-http-client-project-2.1.1","async-http-client-project-2.1.0","async-http-client-project-2.1.0-RC4","async-http-client-project-2.1.0-RC3","async-http-client-project-2.1.0-RC2","async-http-client-project-2.1.0-RC1","async-http-client-project-2.1.0-alpha26","async-http-client-project-2.1.0-alpha25","async-http-client-project-2.1.0-alpha24","async-http-client-project-2.1.0-alpha23","async-http-client-project-2.1.0-alpha22","async-http-client-project-2.1.0-alpha21","async-http-client-project-2.1.0-alpha20","async-http-client-project-2.1.0-alpha19","async-http-client-project-2.1.0-alpha18","async-http-client-project-2.1.0-alpha17","async-http-client-project-2.1.0-alpha16","async-http-client-project-2.1.0-alpha15","async-http-client-project-2.1.0-alpha14","async-http-client-project-2.1.0-alpha13","async-http-client-project-2.1.0-alpha12","async-http-client-project-2.1.0-alpha11","async-http-client-project-2.1.0-alpha10","async-http-client-project-2.1.0-alpha9","async-http-client-project-2.1.0-alpha8","async-http-client-project-2.1.0-alpha7","async-http-client-project-2.1.0-alpha6","async-http-client-project-2.1.0-alpha5","async-http-client-project-2.1.0-alpha4","async-http-client-project-2.1.0-alpha3","async-http-client-project-2.1.0-alpha2","async-http-client-project-2.0.24","async-http-client-project-2.0.23","async-http-client-project-2.0.22","async-http-client-project-2.0.21","async-http-client-project-2.0.20","async-http-client-project-2.0.19","async-http-client-project-2.0.18","async-http-client-project-2.0.17","async-http-client-project-2.0.16","async-http-client-project-2.0.15","async-http-client-project-2.0.14","async-http-client-project-2.0.13","async-http-client-project-2.0.12","async-http-client-project-2.0.11","async-http-client-project-2.0.10","async-http-client-project-2.0.9","async-http-client-project-2.0.8","async-http-client-project-2.0.7","async-http-client-project-2.0.6","async-http-client-project-2.0.5","async-http-client-project-2.0.4","async-http-client-project-2.0.3","async-http-client-project-2.0.2","async-http-client-project-2.0.1","async-http-client-project-2.0.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-107232.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}