CVE-2026-24894

Name: CVE-2026-24894
Creator: NVD / NIST
Published: 2026-02-12T20:16:10.02+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 0.36%

Last modified Jun 17, 2026

CVE-2026-24894 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. 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. EPSS estimates a 0.36% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS 4.0

8.7/10

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.36%

27.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Php	Frankenphp	< 1.11.2

References

https://github.com/php/frankenphp/commit/24d6c991a7761b638190eb081deae258143e9735Patch
https://github.com/php/frankenphp/releases/tag/v1.11.2Release Notes
https://github.com/php/frankenphp/security/advisories/GHSA-r3xh-3r3w-47gpExploit, Vendor Advisory

Timeline

Published: Feb 12, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-24894?

How severe is CVE-2026-24894?

CVE-2026-24894 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 0.36% probability of exploitation in the next 30 days.

How do I fix CVE-2026-24894?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-24894?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST