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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Cacti | cacti | < 1.2.31 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | cacti | 1.2.31+ds1-1 | — |
| Debian 13 | cacti | No fix yet | — |
| Debian 12 | cacti | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | cacti | No fix yet | — |
| Ubuntu 26.04 LTS | cacti | No fix yet | — |
| Ubuntu 25.10 | cacti | No fix yet | — |
| Ubuntu 24.04 LTS | cacti | No fix yet | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | cacti | No fix yet | — |
| Ubuntu Pro 20.04 LTS | cacti | No fix yet | — |
| Ubuntu Pro 18.04 LTS | cacti | No fix yet | — |
| Ubuntu Pro 16.04 LTS | cacti | No fix yet | — |
| Ubuntu Pro 14.04 LTS | cacti | No fix yet | — |
Advisories 1
- WID-SEC-2026-1931 Cacti: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 25, 2026