Insufficient Session Expiration Affecting github.com/dunglas/frankenphp package, versions <1.11.2
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-GOLANG-GITHUBCOMDUNGLASFRANKENPHP-15279229
- published13 Feb 2026
- disclosed12 Feb 2026
- creditXavier Leune
Introduced: 12 Feb 2026
CVE-2026-24894 (opens in a new tab)How to fix?
Upgrade github.com/dunglas/frankenphp to version 1.11.2 or higher.
Overview
Affected versions of this package are vulnerable to Insufficient Session Expiration via the frankenphp_reset_super_globals reset logic. An attacker can access sensitive session data belonging to other users by sending a request to a worker before session_start() is called.
note:
This is only exploitable if the application is running in worker mode and does not call session_start() at the beginning of each request.
Workaround
This vulnerability can be mitigated by ensuring session_start() is called immediately at the entry point of the worker script or by manually unsetting $_SESSION at the very beginning of the worker loop before handling the request.