Bug 2538590 (CVE-2026-79313)

Summary: CVE-2026-79313 webpy: webpy: Unauthorized access due to insufficient session expiration
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in webpy. The application's session management relies on periodic cleanup to expire sessions instead of checking the last-access time when a session is loaded. This allows an attacker holding a previously valid session cookie to replay and use an expired session. As a result, an attacker can continue accessing protected resources after the configured idle timeout, leading to unauthorized access.
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Bug Depends On: 2540992    
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Description OSIDB Bzimport 2026-09-22 19:40:52 UTC 
webpy web.py 0.76 is vulnerable to Insufficient Session Expiration. The application's session management relies on periodic cleanup to expire sessions instead of checking the last-access time when a session is loaded. As a result, an expired session whose record has not yet been cleaned up can still be replayed and used, allowing an attacker holding a previously valid session cookie to continue accessing protected resources after the configured idle timeout.