{"id":"BIT-composer-2026-59946","summary":"Composer: Path traversal in package bin field lets dependencies chmod arbitrary host files","details":"Composer is a dependency Manager for the PHP language. Prior to 2.2.29 and 2.10.2, a Composer package bin entry containing .. path segments can resolve outside the package install directory and cause Composer's binary installation flow to chmod an existing host file to a world-readable and world-executable mode during composer install, update, or require. This issue is fixed in versions 2.2.29 and 2.10.2.","aliases":["CVE-2026-59946","GHSA-gjfg-22fp-rrxx"],"modified":"2026-07-27T09:00:09.634283212Z","published":"2026-07-14T08:40:58.630Z","database_specific":{"cpes":["cpe:2.3:a:getcomposer:composer:*:*:*:*:*:*:*:*","cpe:2.3:a:getcomposer:composer:*:*:*:*:*:php:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://github.com/composer/composer/commit/502c6c4f699802d9cf464728b3e8a95674f919a0"},{"type":"WEB","url":"https://github.com/composer/composer/commit/c50b1efd13ebd73f6dca19b31424c5a02bf93cc1"},{"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-gjfg-22fp-rrxx"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59946"}],"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-2026-59946.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N"}]}],"schema_version":"1.7.5"}