{"id":"CVE-2026-128026","summary":"FrankenPHP 1.5.0 before 1.13.0 Cross-Request Environment Leakage via putenv","details":"FrankenPHP from 1.5.0 before 1.13.0 contains an incomplete environment sandbox vulnerability in which putenv writes to the process-wide OS environment via os.Setenv, leaking values across concurrent requests. Attackers reaching a request path that spawns child processes with the default environment through proc_open or exec can read secrets such as database passwords set by other requests.","aliases":["GHSA-996f-w38m-f574"],"modified":"2026-11-14T02:47:31.973473730Z","published":"2026-11-13T09:34:03.804Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-488"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128026.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/128xxx/CVE-2026-128026.json"},{"type":"ADVISORY","url":"https://github.com/php/frankenphp/security/advisories/GHSA-996f-w38m-f574"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-128026"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/frankenphp-1.5.0-before-1.13.0-cross-request-environment-leakage-via-putenv"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/php/frankenphp","events":[{"introduced":"d3589f97706eac585cdafddbc059cdd53711faf9"},{"fixed":"233f793654acf53be41385a4a29ac5e126cf6701"}],"database_specific":{"extracted_events":[{"source":"AFFECTED_FIELD","strategy":"StandardRange","range":[{"introduced":"1.5.0"},{"fixed":"1.13.0"}]}]}}],"versions":["v1.12.7","caddy/v1.12.7","v1.12.6","caddy/v1.12.6","v1.12.5","caddy/v1.12.5","v1.12.4","caddy/v1.12.4","v1.12.3","caddy/v1.12.3","v1.12.2","caddy/v1.12.2","v1.12.1","caddy/v1.12.1","v1.12.0","caddy/v1.12.0","v1.11.3","caddy/v1.11.3","v1.11.2","caddy/v1.11.2","v1.11.1","caddy/v1.11.1","v1.11.0","caddy/v1.11.0","v1.10.1","caddy/v1.10.1","v1.10.0","caddy/v1.10.0","v1.9.1","caddy/v1.9.1","v1.9.0","caddy/v1.9.0","v1.8.0","caddy/v1.8.0","v1.7.0","caddy/v1.7.0","v1.6.2","caddy/v1.6.2","v1.6.1","caddy/v1.6.1","v1.6.0","caddy/v1.6.0","v1.5.0","caddy/v1.5.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-128026.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N"}]}