Description
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.
Published: 2026-09-22
Score: 9.8 Critical
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 22 Sep 2026 20:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 22 Sep 2026 19:45:00 +0000

Type Values Removed Values Added
First Time appeared Webpy
Webpy webpy
Vendors & Products Webpy
Webpy webpy

Tue, 22 Sep 2026 17:15:00 +0000

Type Values Removed Values Added
Title Unexpired Session Replay in web.py 0.76 Allows Unauthorized Access
Weaknesses CWE-613

Tue, 22 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
Description 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.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-22T19:17:42.656Z

Reserved: 2026-08-25T00:00:00.000Z

Link: CVE-2026-79313

cve-icon Vulnrichment

Updated: 2026-09-22T19:17:38.912Z

cve-icon NVD

Status : Deferred

Published: 2026-09-22T15:17:15.467

Modified: 2026-09-22T20:17:08.790

Link: CVE-2026-79313

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T19:16:15Z

Weaknesses
  • CWE-613

    Insufficient Session Expiration