High severityNVD Advisory· Published Feb 12, 2026· Updated Feb 12, 2026
FrankenPHP leaks session data between requests in worker mode
CVE-2026-24894
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.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/dunglas/frankenphpGo | < 1.11.2 | 1.11.2 |
Affected products
3- ghsa-coords2 versionspkg:golang/github.com/dunglas/frankenphppkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6
< 1.11.2+ 1 more
- (no CPE)range: < 1.11.2
- (no CPE)range: < 0.0.20260226T182644-150000.1.149.1
- Range: < 1.11.2
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-r3xh-3r3w-47gpghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-24894ghsaADVISORY
- github.com/php/frankenphp/commit/24d6c991a7761b638190eb081deae258143e9735ghsax_refsource_MISCWEB
- github.com/php/frankenphp/releases/tag/v1.11.2ghsax_refsource_MISCWEB
- github.com/php/frankenphp/security/advisories/GHSA-r3xh-3r3w-47gpghsax_refsource_CONFIRMWEB
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