Cacti: Session Fixation via missing session_regenerate_id() after login_CVE-2026-40082

5.4 / 10

MEDIUM

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

Description

Cacti is an open source performance and fault management framework. Versions 1.2.30 and prior have missing session_regenerate_id() after login, leading to Session Fixation. session_regenerate_id() is NOT called after successful login. The login flow at auth_login.php:203-207 directly sets $_SESSION[SESS_USER_ID] without rotating the session ID. The session cookie configuration is otherwise good (httponly=true, samesite=Strict, secure=true for HTTPS at include/global.php:513-537), but these do not prevent session fixation via same-site vectors. This issue has been fixed in version 1.2.31.

Basic Information

ID CVE-2026-40082

Source GitHub_M

Published Jun 25, 2026 at 22:33

Affected Product

Vendor Cacti

Product cacti

Version < 1.2.31

Affected Versions Cacti cacti < 1.2.31

CWE Classification

CWE-384

References

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    "published": "2026-06-25T22:33:45.871Z",
    "modified": "2026-06-25T22:33:45.871Z",
    "type": "cve",
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    "source": "GitHub_M",
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