CVE-2026-79313

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.

Score
CVSS 3.1 9.8 Critical
Status
Deferred - cve@mitre.org
Published
2026-09-22
Last modified
2026-09-22
Weaknesses
CWE-613

References