{"action":"Upgrade phpseclib/phpseclib to 3.0.57 or later.","affected":[{"fixed":"3.0.57","introduced":"0"},{"fixed":"4.0.1","introduced":"4.0.0"}],"component":"phpseclib/phpseclib","cve_ids":["CVE-2026-84308"],"ecosystem":"Packagist","epss":0.00327,"exploited":false,"fixed_versions":["3.0.57","4.0.1"],"ghsa_id":"GHSA-q97c-8qh3-fpc6","id":"tcs_01M5KF74R0733AQSYXHJC905AN","modified_at":"2026-09-29T21:30:09.074541603Z","published_at":"2026-09-08T21:24:29Z","references":["https://osv.dev/vulnerability/GHSA-q97c-8qh3-fpc6","https://github.com/phpseclib/phpseclib/security/advisories/GHSA-q97c-8qh3-fpc6","https://nvd.nist.gov/vuln/detail/CVE-2026-84308","https://github.com/phpseclib/phpseclib/commit/fb56bc5bb9009b54a6c26b31aeec8ed944f17373","https://github.com/phpseclib/phpseclib","https://github.com/phpseclib/phpseclib/releases/tag/3.0.57","https://github.com/phpseclib/phpseclib/releases/tag/4.0.1"],"severity":{"label":"medium","score":6.3},"sources":[{"source":"osv","source_id":"GHSA-q97c-8qh3-fpc6","url":"https://osv.dev/vulnerability/GHSA-q97c-8qh3-fpc6"}],"summary":"phpseclib — non-constant-time X25519 scalar multiplication permits full private-key recovery"}