CVE-2026-128026: FrankenPHP 1.5.0 before 1.13.0 Cross-Request Environment Leakage via putenv
php · frankenphp
Fixed in 1.13.0 · Affected: php frankenphp before 1.13.0 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 2% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- php · frankenphpfrom 1.5.0 before 1.13.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- php
- Published
- November 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-128026 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.