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EUVD-2026-229969

2026-10-03T20:34:45.021569+00:00

EUVD-2026-229969

fkie_cve-2022-46170

2026-10-03T20:34:45.021603+00:00

CodeIgniter is a PHP full-stack web framework. When an application uses (1) multiple session cookies (e.g., one for user pages and one for admin pages) and (2) a session handler is set to `DatabaseHandler`, `MemcachedHandler`, or `RedisHandler`, then if an attacker gets one session cookie (e.g., one for user pages), they may be able to access pages that require another session cookie (e.g., for admin pages). This issue has been patched, please upgrade to version 4.2.11 or later. As a workaround, use only one session cookie.

GHSA-6cq5-8cj7-g558 — CodeIgniter4 Potential Session Handlers Vulnerability

2026-10-03T20:34:45.021636+00:00

Affected: Packagist: codeigniter4/framework

### Impact When an application uses (1) multiple session cookies (e.g., one for user pages and one for admin pages) and (2) a session handler is set to `DatabaseHandler`, `MemcachedHandler`, or `RedisHandler`, then if an attacker gets one session cookie (e.g., one for user pages), they may be able to access pages that require another session cookie (e.g., for admin pages).

### Patches Upgrade to version 4.2.11 or later.

### Workarounds - Use only one session cookie.

### References - https://codeigniter4.github.io/userguide/libraries/sessions.html#session-drivers

### For more information If you have any questions or comments about this advisory: * Open an issue in [codeigniter4/CodeIgniter4](https://github.com/codeigniter4/CodeIgniter4/issues) * Email us at [SECURITY.md](https://github.com/codeigniter4/CodeIgniter4/blob/develop/SECURITY.md)

gsd-2022-46170

2026-10-03T20:34:45.021668+00:00

gsd-2022-46170