What is CVE-2026-38968?

CVE-2026-38968 is a critical-severity vulnerability in Ntop Ntopng, classified under CWE-341. CVSS score: 9.8/10. Published 2026-07-02.

How severe is CVE-2026-38968?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Ntop Ntopng

CVE-2026-38968

ntopng through 6.6 is vulnerable to Predictable Session Identifier which can lead to Session Hijacking. HTTP session identifiers in src/HTTPserver.cpp use weak time-seeded pseudo-randomness during session creation. As a result, fresh authenticated logins can receive deterministic or colliding session cookies under attacker-controlled timing.

EPSS: 0.004 (30.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ntop Ntopng
N/a — versions n/a

Weakness classification (CWE)

CWE-341

References

cve@mitre.org (Patch)
cve@mitre.org (Patch)

Frequently asked questions

What is CVE-2026-38968?: CVE-2026-38968 is a critical-severity vulnerability in Ntop Ntopng, classified under CWE-341. CVSS score: 9.8/10. Published 2026-07-02.
How severe is CVE-2026-38968?: Critical severity. CVSS v3 base score is 9.8 out of 10.