CVE-2026-38968

critical · 9.8

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.

9.8

CVSS

0.6%

EPSS (exploit prob.)

45th

EPSS percentile

2026-07-02

Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

CWE-341

Affected products

Vendor	Product	Affected versions
ntop	ntopng	<= 6.6

Check a specific version with /api/v1/cve/match.

References

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

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-38968