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CVE-2025-46336

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Date: May 8, 2025

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.

Severity Score

Severity Score

Weakness Type (CWE)

Insufficient Session Expiration

CWE-613

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-362

Time-of-check Time-of-use (TOCTOU) Race Condition

CWE-367

Top Fix

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Upgrade Version

Upgrade to version rack-session - 2.1.1;https://github.com/rack/rack-session.git - v2.1.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): LOW
Availability (A): NONE

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