{"id":"BIT-composer-2026-59947","summary":"Composer: URL-embedded HTTP-Basic username leaks to verbose logs (GitHub PAT exposure)","details":"Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, when Composer is run with -vvv debug verbosity, it could print a credential embedded in the username slot of a repository or package URL, such as a GitHub Personal Access Token in https://TOKEN@host/, to debug output because AuthHelper, Url::sanitize, and ProcessExecutor did not sanitize username-only URL credentials. This issue is fixed in versions 2.2.29 and 2.10.2.","aliases":["CVE-2026-59947","GHSA-g6xq-892h-64w3"],"modified":"2026-07-27T09:00:09.666432827Z","published":"2026-07-14T08:40:59.896Z","database_specific":{"severity":"Medium","cpes":["cpe:2.3:a:getcomposer:composer:*:*:*:*:*:*:*:*","cpe:2.3:a:getcomposer:composer:*:*:*:*:*:php:*:*"]},"references":[{"type":"WEB","url":"https://github.com/composer/composer/commit/6bd66874ae523ecb69aca5964487a0cdfda03ef8"},{"type":"WEB","url":"https://github.com/composer/composer/commit/8887ad76fbd830cb1861a2b1fd8ead78ed1fa1ec"},{"type":"WEB","url":"https://github.com/composer/composer/releases/tag/2.10.2"},{"type":"WEB","url":"https://github.com/composer/composer/releases/tag/2.2.29"},{"type":"WEB","url":"https://github.com/composer/composer/security/advisories/GHSA-g6xq-892h-64w3"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59947"}],"affected":[{"package":{"name":"composer","ecosystem":"Bitnami","purl":"pkg:bitnami/composer"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.0.0"},{"fixed":"2.2.29"},{"introduced":"2.3.0"},{"fixed":"2.10.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/composer/BIT-composer-2026-59947.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}],"schema_version":"1.7.5"}