What is CVE-2026-40082?

CVE-2026-40082 is a medium-severity vulnerability in Cacti, classified under Session Fixation. CVSS score: 5.4/10. Published 2026-06-25.

How severe is CVE-2026-40082?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Cacti

CVE-2026-40082

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…

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N.

Affected products

Cacti — versions < 1.2.31

Weakness classification (CWE)

CWE-384 — Session Fixation

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-40082?: CVE-2026-40082 is a medium-severity vulnerability in Cacti, classified under Session Fixation. CVSS score: 5.4/10. Published 2026-06-25.
How severe is CVE-2026-40082?: Medium severity. CVSS v3 base score is 5.4 out of 10.