# CVE-2025-46336: ruby-rack-session: Rack::Session is a session management implementation for Rack

CVE-2025-46336 is fixed in ruby-rack-session on 1 platform, first by DEBIAN-CVE-2025-46336, released May 8, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-46336
- Priority: Routine
- CVSS: 4.2 (medium)
- EPSS: 0.0039
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 8, 2025

## Description

Rack::Session is a session management implementation for Rack. In versions starting from 2.0.0 to before 2.1.1, when using the Rack::Session::Pool middleware, and provided the attacker can acquire a session cookie (already a major issue), the session may be restored if the attacker can trigger a long running request (within that same session) adjacent to the user logging out, in order to retain illicit access even after a user has attempted to logout. This issue has been patched in version 2.1.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | ruby-rack-session Debian 13.5 (trixie) | 2.1.1-0.1 | [DEBIAN-CVE-2025-46336](https://patchblox.com/security/data/fix/linux/debian-cve-2025-46336.md) | May 8, 2025 |
| Linux | ruby-rack-session Debian 14 | 2.1.1-0.1 | [DEBIAN-CVE-2025-46336](https://patchblox.com/security/data/fix/linux/debian-cve-2025-46336.md) | May 8, 2025 |

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Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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