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Devise has an Open Redirect via Unvalidated `request.referrer` in Timeoutable Session Timeout Handler

🗓️ 08 May 2026 00:00:00Reported by RubySecType 
rubygems
 rubygems
🔗 rubysec.com👁 5 Views

Devise timeout redirect for non-get uses attacker-controlled Referer header, enabling open redirect.

Related
Detection
Refs
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CVE-2026-40295
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22 May 202600:00
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CVE
CVE-2026-40295
22 May 202619:10
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Cvelist
CVE-2026-40295 Devise: Open Redirect via Unvalidated `request.referrer` in Timeoutable Session Timeout Handler
22 May 202619:10
cvelist
Debian CVE
CVE-2026-40295
22 May 202619:10
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EUVD
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22 May 202619:10
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Github Security Blog
Devise has an Open Redirect via Unvalidated `request.referrer` in Timeoutable Session Timeout Handler
8 May 202615:41
github
NVD
CVE-2026-40295
22 May 202620:16
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Vulners
Node
rubydeviseRange5.0.4

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08 May 2026 00:00Current
6Medium risk
Vulners AI Score6
CVSS 3.16.1
EPSS0.00067
SSVC
5