FrankenPHP before 1.13.4 contains an information disclosure vulnerability in worker mode that leaks per-request environment variables into later requests on the same PHP thread. Attackers can read values set via env directives with request placeholders or WithRequestEnv() through getenv() or $_SERVER, causing applications to act on another user's routing, tenant, or authorization values.
Advisories

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Fixes

Solution

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Workaround

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History

Fri, 13 Nov 2026 09:45:00 +0000

Type Values Removed Values Added
Description FrankenPHP before 1.13.4 contains an information disclosure vulnerability in worker mode that leaks per-request environment variables into later requests on the same PHP thread. Attackers can read values set via env directives with request placeholders or WithRequestEnv() through getenv() or $_SERVER, causing applications to act on another user's routing, tenant, or authorization values.
Title FrankenPHP before 1.13.4 Information Disclosure via Per-Request Environment Variable Leak
First Time appeared Php
Php frankenphp
Weaknesses CWE-200
CPEs cpe:2.3:a:php:frankenphp:*:*:*:*:*:*:*:*
Vendors & Products Php
Php frankenphp
References
Metrics cvssV3_1

{'score': 4.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N'}

cvssV4_0

{'score': 6.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T09:34:08.571Z

Reserved: 2026-11-12T20:32:53.532Z

Link: CVE-2026-128019

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-13T10:18:07.303

Modified: 2026-11-13T10:18:07.420

Link: CVE-2026-128019

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses