FrankenPHP before 1.13.4 contains a use-after-free vulnerability that leaves a dangling pointer to a freed environment table when putenv() is called during request shutdown. Attackers triggering putenv() in shutdown functions, destructors, or session handlers can crash the process on the next getenv() call or leak previous request environment values.

Attack Vector Network

Attack Complexity High

Privileges Required None

Attack Requirements Present

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact High

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity High

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00453.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
php frankenphp unaffected
Version Status Constraints
0 affected < 1.13.4
1.13.4 unaffected —

No data.

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Project Subscriptions

Vendors Products
Php Subscribe
Frankenphp Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/php/frankenphp/commit/ab174aa6c27738b9ee56c97ac276d152bfb38f5e cve-icon cve-icon
https://github.com/php/frankenphp/security/advisories/GHSA-rgpj-f2qx-xwhf cve-icon cve-icon
https://www.vulncheck.com/advisories/frankenphp-before-1.13.4-use-after-free-via-putenv-during-request-shutdown cve-icon cve-icon
History

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

Type Values Removed Values Added
Description FrankenPHP before 1.13.4 contains a use-after-free vulnerability that leaves a dangling pointer to a freed environment table when putenv() is called during request shutdown. Attackers triggering putenv() in shutdown functions, destructors, or session handlers can crash the process on the next getenv() call or leak previous request environment values.
Title FrankenPHP before 1.13.4 Use-After-Free via putenv() During Request Shutdown
First Time appeared Php
Php frankenphp
Weaknesses CWE-416
CPEs cpe:2.3:a:php:frankenphp:*:*:*:*:*:*:*:*
Vendors & Products Php
Php frankenphp
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H'}

cvssV4_0

{'score': 8.3, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-11-13T09:34:11.325Z

Reserved: 2026-11-12T20:32:53.531Z

Link: CVE-2026-128015

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Deferred

Published: 2026-11-13T10:18:06.633

Modified: 2026-11-13T10:18:06.767

Link: CVE-2026-128015

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses