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CVE-2026-24894— FrankenPHP leaks session data between requests in worker mode

Quick assessment

Affected
php frankenphp
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

FrankenPHP是phpnet开源的一个PHP应用服务器。 FrankenPHP 1.11.2之前版本存在代码问题漏洞，该漏洞源于在worker模式下运行时，$_SESSION超全局变量未在请求间正确重置，可能导致后续请求访问先前请求的会话数据。

AI Predicted 7.5 Difficulty: Easy EPSS 0.38% · P30

Possible ATT&CK Techniques 1 AI

T1136.001 · Local Account
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I. Basic Information for CVE-2026-24894

Vulnerability Information
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Vulnerability Title
FrankenPHP leaks session data between requests in worker mode
Source: CVE Program / CVE List V5
Vulnerability Description
FrankenPHP is a modern application server for PHP. Prior to 1.11.2, when running FrankenPHP in worker mode, the $_SESSION superglobal is not correctly reset between requests. This allows a subsequent request processed by the same worker to access the $_SESSION data of the previous request (potentially belonging to a different user) before session_start() is called. This vulnerability is fixed in 1.11.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
FrankenPHP 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FrankenPHP是phpnet开源的一个PHP应用服务器。 FrankenPHP 1.11.2之前版本存在代码问题漏洞，该漏洞源于在worker模式下运行时，$_SESSION超全局变量未在请求间正确重置，可能导致后续请求访问先前请求的会话数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
php frankenphp < 1.11.2 -

II. Public POCs for CVE-2026-24894

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III. Intelligence Information for CVE-2026-24894

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Patches & Fixes for CVE-2026-24894 (1)

IV. Related Vulnerabilities

Same product: frankenphp
Same vendor: php
Same weakness: CWE-269

V. Comments for CVE-2026-24894

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