Critical 9.8Published Jul 1, 2026

CVE-2026-38968ntopng through 6.6 is vulnerable to Predictable Session Identifier which can lead to Session Hijacking.

Updated under an hour ago (Oct 27, 2026, 1:10 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for ntopng

Exploited in the last 30 days

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.

CVSS: 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-341
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: mitre
NVD analysis: Analyzed
Record last updated: Jul 6, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

ntop ntopng ntop:ntopng	through 6.6	NVD

References

References

https://github.com/ntop/ntopng/commit/179a346ceb6239fd36128ccca3efa8f9ea61eeb5	patch
https://github.com/ntop/ntopng/commit/14e22497233dc7d31d19dccb74b13bb073d16c2c	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.