{"action":"Upgrade composer/composer to 2.2.27 or later.","affected":[{"fixed":"2.9.6","introduced":"2.3.0"},{"fixed":"2.2.27","introduced":"1.0.0"}],"component":"composer/composer","cve_ids":["CVE-2026-40176"],"ecosystem":"Packagist","epss":0.01045,"exploited":false,"fixed_versions":["2.9.6","2.2.27"],"ghsa_id":"GHSA-wg36-wvj6-r67p","id":"tcs_01M5KFA1RGMJ6FM9D2NQZ0E065","modified_at":"2026-09-10T03:50:44.865226987Z","published_at":"2026-04-14T20:03:08Z","references":["https://osv.dev/vulnerability/GHSA-wg36-wvj6-r67p","https://github.com/composer/composer/security/advisories/GHSA-wg36-wvj6-r67p","https://nvd.nist.gov/vuln/detail/CVE-2026-40176","https://access.redhat.com/errata/RHSA-2026:8165","https://access.redhat.com/security/cve/CVE-2026-40176","https://bugzilla.redhat.com/show_bug.cgi?id=2458828","https://github.com/FriendsOfPHP/security-advisories/blob/master/composer/composer/CVE-2026-40176.yaml","https://github.com/composer/composer","https://github.com/composer/composer/releases/tag/2.9.6","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40176.json"],"severity":{"label":"high","score":7.8},"sources":[{"source":"osv","source_id":"GHSA-wg36-wvj6-r67p","url":"https://osv.dev/vulnerability/GHSA-wg36-wvj6-r67p"}],"summary":"Composer has a command injection via malicious perforce repository"}