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CVE-2025-46336— Rack session gets restored after deletion

Quick assessment

Affected
rack rack-session
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Rack::Session是Official Rack repositories开源的一个应用程序。 Rack::Session 2.0.0至2.1.1之前版本存在安全漏洞，该漏洞源于会话管理不当，可能导致会话恢复攻击。

CVSS 4.2 · Medium EPSS 0.32% · P23

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2025-46336

Vulnerability Information
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Vulnerability Title
Rack session gets restored after deletion
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
Rack::Session 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Rack::Session是Official Rack repositories开源的一个应用程序。 Rack::Session 2.0.0至2.1.1之前版本存在安全漏洞，该漏洞源于会话管理不当，可能导致会话恢复攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
rack rack-session >= 2.0.0, < 2.1.1 -

II. Public POCs for CVE-2025-46336

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III. Intelligence Information for CVE-2025-46336

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Vendor Advisories for CVE-2025-46336 (1)

IV. Related Vulnerabilities

Same product: rack-session
Same vendor: rack
Same weakness: CWE-362

V. Comments for CVE-2025-46336

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