CVE-2026-38968
Critical
Description
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.
SeverityCritical
CVSS9.8
Exploit probability—
ProductNtopng
PublishedJul 2, 2026
First seenJul 2, 2026
Weakness typeCWE-341CWE-341
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ntop ntopng | v ≤ 6.6 | — |
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