{"id":"CVE-2026-107228","title":"The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses","summary":"The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.1.0 until 3.0.14, the enabled-by-default cookie store replaces a Cookie header explicitly suppli…","severity":"medium","cvss":6.8,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N","cwe":["CWE-287"],"vendor":"asynchttpclient","product":"org.asynchttpclient:async-http-client","affected":["org.asynchttpclient:async-http-client >= 3.0.0, <= 3.0.13","org.asynchttpclient:async-http-client >= 2.1.0, <= 2.16.1"],"patched":["org.asynchttpclient:async-http-client 3.0.14"],"published":"2026-10-07","updated":"2026-10-08","sourceUpdated":"2026-10-08T20:35:31.200","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-107228","references":[{"url":"https://github.com/AsyncHttpClient/async-http-client/commit/fd9763620725126c1c8bb0af1ceb9a7523099a5f","label":"security-advisories@github.com"},{"url":"https://github.com/AsyncHttpClient/async-http-client/releases/tag/async-http-client-project-3.0.14","label":"security-advisories@github.com"},{"url":"https://github.com/AsyncHttpClient/async-http-client/security/advisories/GHSA-2jwh-9rmr-j4xf","label":"security-advisories@github.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-107228"},{"url":"https://github.com/advisories/GHSA-2jwh-9rmr-j4xf"}],"tags":["nvd","ghsa","maven","cve.org"],"aliases":["GHSA-2jwh-9rmr-j4xf"],"ecosystem":"maven","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-10-08T16:08:01.091769Z"},"ingestedAt":"2026-10-07T21:54:15.091Z","epss":0.00301,"epssPercentile":0.22683,"slug":"CVE-2026-107228","body":"## Overview\n\nThe AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.1.0 until 3.0.14, the enabled-by-default cookie store replaces a Cookie header explicitly supplied through setHeader or addHeader whenever the store contributes any cookie for the origin. In a shared client, stored cookies originating from one user can replace a different user's request cookie, causing the request to execute under the wrong session. This bypasses the earlier CVE-2024-53990 remediation, which covered cookies supplied through addCookie but not a directly supplied header. This issue is fixed in version 3.0.14.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-107228)\n\nAffected packages:\n\n- `org.asynchttpclient:async-http-client >= 3.0.0, <= 3.0.13`\n- `org.asynchttpclient:async-http-client >= 2.1.0, <= 2.16.1`\n\nPatched in:\n\n- `org.asynchttpclient:async-http-client 3.0.14`\n\nSource: https://github.com/advisories/GHSA-2jwh-9rmr-j4xf","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":37.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}