{"action":"Upgrade phpseclib/phpseclib to 1.0.30 or later.","affected":[{"fixed":"1.0.30","introduced":"0.1.1"},{"fixed":"2.0.55","introduced":"2.0.0"},{"fixed":"3.0.54","introduced":"3.0.0"}],"component":"phpseclib/phpseclib","cve_ids":["CVE-2026-55599"],"ecosystem":"Packagist","epss":0.00213,"exploited":false,"fixed_versions":["1.0.30","2.0.55","3.0.54"],"ghsa_id":"GHSA-m557-wrgg-6rp4","id":"tcs_01M5KF559XMVNEXAYDJ8M6H97E","modified_at":"2026-09-10T03:51:08.986345257Z","published_at":"2026-06-16T15:03:58Z","references":["https://osv.dev/vulnerability/GHSA-m557-wrgg-6rp4","https://github.com/phpseclib/phpseclib/security/advisories/GHSA-m557-wrgg-6rp4","https://nvd.nist.gov/vuln/detail/CVE-2026-55599","https://github.com/phpseclib/phpseclib"],"severity":{"label":"medium","score":5.8},"sources":[{"source":"osv","source_id":"GHSA-m557-wrgg-6rp4","url":"https://osv.dev/vulnerability/GHSA-m557-wrgg-6rp4"}],"summary":"phpseclib: X.509 certificate validation sends attacker-controlled outbound requests (server-side request forgery) via Authority Information Access"}