CVE-2026-38968 Details
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.
A vulnerability in ntopng prior to version 6.6 allows for session hijacking due to predictable session identifiers. The issue arises because the HTTP session identifiers are generated using weak, time-seeded pseudo-randomness, creating a risk of deterministic or colliding session cookies. This vulnerability can be exploited by an attacker who controls the timing of requests, potentially allowing them to hijack fresh authenticated sessions.
Users can update to ntopng version 6.6 or later, where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 6, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-341 | Predictable from Observable State | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| ntop ntopng | <= 6.6 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 8, 2026 | Initial Analysis | [email protected] |
| Jul 6, 2026 | CVE Modified | CISA-ADP |
| Jul 2, 2026 | New CVE Received | [email protected] |