CVE-2026-38968

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM 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
Trending — 4 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 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(medium)
EG Risk
59(Track)
EG Risk 59/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

July 2, 2026

Last Modified

July 8, 2026

Advisory Details (2)

Auto-updated Sep 13, 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 30× in last 7d / 97× 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.

Showing the most recent 100 of 372 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-18 10:12 UTCVendor advisory
  4. 2026-09-18 10:12 UTCGHSA enrichment
  5. 2026-09-18 06:14 UTCEG score recompute
  6. 2026-09-18 06:14 UTCVendor advisory
  7. 2026-09-18 06:14 UTCGHSA enrichment
  8. 2026-09-17 19:30 UTCEPSS rescore
  9. 2026-09-16 14:08 UTCEPSS rescore
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 03:11 UTCEPSS rescore
  12. 2026-09-14 08:14 UTCVendor advisory
  13. 2026-09-14 08:14 UTCGHSA enrichment
  14. 2026-09-14 04:12 UTCVendor advisory
  15. 2026-09-14 04:12 UTCGHSA enrichment
  16. 2026-09-14 00:15 UTCVendor advisory
  17. 2026-09-14 00:15 UTCGHSA enrichment
  18. 2026-09-13 16:56 UTCEG score recompute
  19. 2026-09-13 16:56 UTCVendor advisory
  20. 2026-09-13 16:56 UTCGHSA enrichment
  21. 2026-09-13 16:47 UTCEPSS rescore
  22. 2026-09-13 12:56 UTCVendor advisory
  23. 2026-09-13 12:56 UTCGHSA enrichment
  24. 2026-09-13 08:59 UTCEG score recompute
  25. 2026-09-13 08:59 UTCVendor advisory
Show 75 more
  1. 2026-09-13 08:59 UTCGHSA enrichment
  2. 2026-09-12 15:01 UTCEPSS rescore
  3. 2026-09-12 14:14 UTCEG score recompute
  4. 2026-09-12 14:14 UTCVendor advisory
  5. 2026-09-12 14:14 UTCGHSA enrichment
  6. 2026-09-11 14:53 UTCEPSS rescore
  7. 2026-09-11 09:37 UTCEPSS rescore
  8. 2026-09-10 09:34 UTCEPSS rescore
  9. 2026-09-08 22:00 UTCEPSS rescore
  10. 2026-09-07 16:01 UTCEPSS rescore
  11. 2026-09-06 14:19 UTCEG score recompute
  12. 2026-09-06 14:19 UTCGHSA enrichment
  13. 2026-09-06 13:47 UTCEPSS rescore
  14. 2026-09-06 04:52 UTCGHSA enrichment
  15. 2026-09-05 23:51 UTCEG score recompute
  16. 2026-09-05 23:51 UTCGHSA enrichment
  17. 2026-09-04 05:06 UTCEPSS rescore
  18. 2026-09-02 14:12 UTCEPSS rescore
  19. 2026-09-01 13:53 UTCEPSS rescore
  20. 2026-09-01 04:39 UTCEPSS rescore
  21. 2026-08-31 00:46 UTCGHSA enrichment
  22. 2026-08-30 20:48 UTCEG score recompute
  23. 2026-08-30 20:48 UTCGHSA enrichment
  24. 2026-08-30 19:17 UTCEPSS rescore
  25. 2026-08-30 16:51 UTCGHSA enrichment
  26. 2026-08-30 11:21 UTCEG score recompute
  27. 2026-08-30 11:21 UTCGHSA enrichment
  28. 2026-08-30 01:22 UTCEPSS rescore
  29. 2026-08-28 21:41 UTCEPSS rescore
  30. 2026-08-28 02:46 UTCGHSA enrichment
  31. 2026-08-27 22:13 UTCEG score recompute
  32. 2026-08-27 22:13 UTCGHSA enrichment
  33. 2026-08-27 14:25 UTCEPSS rescore
  34. 2026-08-26 14:46 UTCEPSS rescore
  35. 2026-08-25 13:49 UTCEPSS rescore
  36. 2026-08-25 13:40 UTCGHSA enrichment
  37. 2026-08-25 04:50 UTCGHSA enrichment
  38. 2026-08-25 00:53 UTCGHSA enrichment
  39. 2026-08-24 20:55 UTCEG score recompute
  40. 2026-08-24 20:55 UTCGHSA enrichment
  41. 2026-08-24 14:14 UTCGHSA enrichment
  42. 2026-08-24 10:15 UTCEG score recompute
  43. 2026-08-24 10:15 UTCGHSA enrichment
  44. 2026-08-24 04:08 UTCGHSA enrichment
  45. 2026-08-23 23:16 UTCGHSA enrichment
  46. 2026-08-23 19:18 UTCGHSA enrichment
  47. 2026-08-23 15:20 UTCGHSA enrichment
  48. 2026-08-23 11:22 UTCGHSA enrichment
  49. 2026-08-23 07:25 UTCGHSA enrichment
  50. 2026-08-23 03:27 UTCEG score recompute
  51. 2026-08-23 03:27 UTCGHSA enrichment
  52. 2026-08-23 00:19 UTCEPSS rescore
  53. 2026-08-22 23:27 UTCGHSA enrichment
  54. 2026-08-22 19:23 UTCGHSA enrichment
  55. 2026-08-22 14:46 UTCGHSA enrichment
  56. 2026-08-22 10:09 UTCGHSA enrichment
  57. 2026-08-22 06:05 UTCGHSA enrichment
  58. 2026-08-22 01:10 UTCEG score recompute
  59. 2026-08-22 01:10 UTCGHSA enrichment
  60. 2026-08-21 23:49 UTCEPSS rescore
  61. 2026-08-21 21:12 UTCGHSA enrichment
  62. 2026-08-21 17:15 UTCGHSA enrichment
  63. 2026-08-21 12:22 UTCGHSA enrichment
  64. 2026-08-21 08:24 UTCGHSA enrichment
  65. 2026-08-21 04:26 UTCGHSA enrichment
  66. 2026-08-21 00:13 UTCEG score recompute
  67. 2026-08-21 00:13 UTCGHSA enrichment
  68. 2026-08-20 22:55 UTCEPSS rescore
  69. 2026-08-20 20:14 UTCGHSA enrichment
  70. 2026-08-20 16:16 UTCGHSA enrichment
  71. 2026-08-20 12:19 UTCGHSA enrichment
  72. 2026-08-20 07:59 UTCGHSA enrichment
  73. 2026-08-20 04:00 UTCEG score recompute
  74. 2026-08-20 04:00 UTCGHSA enrichment
  75. 2026-08-19 17:03 UTCEPSS rescore

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 1% probability of exploitation in the next 30 days, which ranks it in the top 55.0% of all scored CVEs.
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.

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