CVE-2026-38968

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-07-02. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 9.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
9.8
EG Score
9.8(high)
EG Risk
—
EPSS
30.5%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 8, 2026

Advisory Details (2)

Auto-updated Jul 19, 2026
Upstream fix merged — awaiting tagged release. Sources: github_commit.
github_commit

commit 179a346ceb62 (ntop/ntopng)

Fix landed in ntop/ntopng commit 179a346ceb62 — awaiting tagged release

https://github.com/ntop/ntopng/commit/179a346ceb6239fd36128ccca3efa8f9ea61eeb5
github_commit

commit 14e22497233d (ntop/ntopng)

Fix landed in ntop/ntopng commit 14e22497233d — awaiting tagged release

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

Vendor Advisories for CVE-2026-38968(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 76× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
  4. 2026-07-19 02:29 UTCEPSS rescore
  5. 2026-07-18 10:04 UTCEPSS rescore
  6. 2026-07-17 03:33 UTCGHSA enrichment
  7. 2026-07-16 23:35 UTCGHSA enrichment
  8. 2026-07-16 19:38 UTCGHSA enrichment
  9. 2026-07-16 17:03 UTCEPSS rescore
  10. 2026-07-16 15:38 UTCGHSA enrichment
  11. 2026-07-16 11:32 UTCGHSA enrichment
  12. 2026-07-16 07:31 UTCGHSA enrichment
  13. 2026-07-16 03:33 UTCGHSA enrichment
  14. 2026-07-15 23:35 UTCGHSA enrichment
  15. 2026-07-15 19:37 UTCGHSA enrichment
  16. 2026-07-15 16:57 UTCEPSS rescore
  17. 2026-07-15 16:57 UTCEPSS rescore
  18. 2026-07-15 15:40 UTCGHSA enrichment
  19. 2026-07-15 11:42 UTCGHSA enrichment
  20. 2026-07-15 07:36 UTCGHSA enrichment
  21. 2026-07-15 03:37 UTCGHSA enrichment
  22. 2026-07-15 02:00 UTCEPSS rescore
  23. 2026-07-14 23:39 UTCGHSA enrichment
  24. 2026-07-14 19:41 UTCGHSA enrichment
  25. 2026-07-14 15:43 UTCGHSA enrichment
Show 51 more
  1. 2026-07-14 11:45 UTCGHSA enrichment
  2. 2026-07-14 07:48 UTCGHSA enrichment
  3. 2026-07-14 03:43 UTCGHSA enrichment
  4. 2026-07-13 23:45 UTCGHSA enrichment
  5. 2026-07-13 22:30 UTCEPSS rescore
  6. 2026-07-13 19:47 UTCGHSA enrichment
  7. 2026-07-13 15:49 UTCGHSA enrichment
  8. 2026-07-13 11:51 UTCGHSA enrichment
  9. 2026-07-13 07:53 UTCGHSA enrichment
  10. 2026-07-13 06:13 UTCEPSS rescore
  11. 2026-07-13 06:13 UTCEPSS rescore
  12. 2026-07-13 03:55 UTCGHSA enrichment
  13. 2026-07-12 23:57 UTCGHSA enrichment
  14. 2026-07-12 19:59 UTCGHSA enrichment
  15. 2026-07-12 16:00 UTCGHSA enrichment
  16. 2026-07-12 12:03 UTCGHSA enrichment
  17. 2026-07-12 08:04 UTCGHSA enrichment
  18. 2026-07-12 05:46 UTCEPSS rescore
  19. 2026-07-12 04:06 UTCGHSA enrichment
  20. 2026-07-12 00:05 UTCGHSA enrichment
  21. 2026-07-11 20:07 UTCGHSA enrichment
  22. 2026-07-11 16:09 UTCGHSA enrichment
  23. 2026-07-11 12:11 UTCGHSA enrichment
  24. 2026-07-11 08:27 UTCEPSS rescore
  25. 2026-07-11 08:13 UTCGHSA enrichment
  26. 2026-07-11 04:15 UTCGHSA enrichment
  27. 2026-07-11 00:17 UTCGHSA enrichment
  28. 2026-07-10 20:12 UTCGHSA enrichment
  29. 2026-07-10 16:15 UTCGHSA enrichment
  30. 2026-07-10 12:17 UTCGHSA enrichment
  31. 2026-07-10 08:20 UTCGHSA enrichment
  32. 2026-07-10 04:23 UTCGHSA enrichment
  33. 2026-07-10 00:23 UTCGHSA enrichment
  34. 2026-07-09 20:25 UTCGHSA enrichment
  35. 2026-07-09 19:10 UTCEPSS rescore
  36. 2026-07-09 16:26 UTCGHSA enrichment
  37. 2026-07-09 12:26 UTCGHSA enrichment
  38. 2026-07-09 08:28 UTCEG score recompute▲ 9.80
  39. 2026-07-09 08:28 UTCGHSA enrichment
  40. 2026-07-08 15:15 UTCEPSS rescore
  41. 2026-07-07 13:46 UTCEPSS rescore
  42. 2026-07-06 17:36 UTCMITRE cvelistV5CVSS v3 → 9.8 · severity → CRITICAL
  43. 2026-07-06 16:27 UTCEPSS rescore
  44. 2026-07-06 16:27 UTCEPSS rescore
  45. 2026-07-06 03:17 UTCGHSA enrichment
  46. 2026-07-06 02:23 UTCEPSS rescore
  47. 2026-07-06 02:23 UTCEPSS rescore
  48. 2026-07-05 02:30 UTCEPSS rescore
  49. 2026-07-04 06:31 UTCEPSS rescore
  50. 2026-07-02 22:06 UTCEG score recompute
  51. 2026-07-02 22:06 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-38968?
CVE-2026-38968 is a critical vulnerability published on July 2, 2026. 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…
When was CVE-2026-38968 disclosed?
CVE-2026-38968 was first published in the National Vulnerability Database on July 2, 2026, with the most recent update on July 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-38968 actively exploited?
CVE-2026-38968 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-38968?
CVE-2026-38968 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-38968?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-38968, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-38968

Explore →

Is Your Infrastructure Affected by CVE-2026-38968?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs