CVE-2026-128016

EUVD-2026-125086
FrankenPHP before 1.13.4 contains a use-after-free vulnerability in worker mode that frees internal streams of SplTempFileObject or SplFileObject on php://temp instances surviving across requests. Remote clients can send requests reaching code that uses such persisted objects, causing reads of freed memory that leak garbage data or crash the process.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
6.5 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 39.87%
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
phpfrankenphp
𝑥
< 1.13.4
CNA
Common Weakness Enumeration
References
https://github.com/php/frankenphp/commit/837b76880b33a1a78ae4f27dea85bdcddb6cf70c
https://github.com/php/frankenphp/security/advisories/GHSA-cm3q-jw2q-9rh5
https://www.vulncheck.com/advisories/frankenphp-before-1.13.4-use-after-free-of-spltempfileobject-streams-in-worker-mode