webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.
Advisories

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Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

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 17:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 22 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-384
Metrics cvssV3_1

{'score': 6.8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N'}


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

Type Values Removed Values Added
Description webpy web.py 0.76 is vulnerable to Session Fixation. The component Session._load() reads session_id directly from the request cookie and loads that session from the store, and _save() writes back under the same session_id; no rotation after authentication, so a fixed session_id keeps the authenticated state.
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-09-22T16:02:18.438Z

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

Link: CVE-2026-79312

cve-icon Vulnrichment

Updated: 2026-09-22T16:01:08.409Z

cve-icon NVD

Status : Deferred

Published: 2026-09-22T16:17:56.630

Modified: 2026-09-22T20:00:03.713

Link: CVE-2026-79312

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-22T19:16:12Z

Weaknesses