CVE-2026-128026
FrankenPHP 1.5.0 before 1.13.0 Cross-Request Environment Leakage via putenv
CVSS Score
6.4
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-488 |
| Vendor | php |
| Product | frankenphp |
| Ecosystems | |
| Industries | Technology |
| Published | Nov 13, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None
Affected Versions
php / frankenphp
1.5.0 < 1.13.0
References
Credits
🔍 iliaal alexandre-daubois