CVE-2026-79312

Published: Sep 22, 2026Modified: Sep 22, 2026Deferred

6.8

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploitability: 1.6 / Impact: 5.2

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Related CWEs

CWE-384

Session Fixation

Authenticating a user, or otherwise establishing a new user session, without invalidating any existing session identifier gives an attacker the opportunity to steal authenticated sessions.

References (2)

https://github.com/lichoin/TraceLoom/blob/main/CVEs/CVE-2026-79312.md

Source: cve@mitre.org

https://github.com/webpy/webpy

Source: cve@mitre.org

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