GHSA-5RRM-76Q9-HP77

Vulnerability from github – Published: 2026-07-02 21:32 – Updated: 2026-07-02 21:32
VLAI
Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-38968"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-02T21:16:55Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-5rrm-76q9-hp77",
  "modified": "2026-07-02T21:32:15Z",
  "published": "2026-07-02T21:32:15Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-38968"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ntop/ntopng/commit/14e22497233dc7d31d19dccb74b13bb073d16c2c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/ntop/ntopng/commit/179a346ceb6239fd36128ccca3efa8f9ea61eeb5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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Detection rules are retrieved from Rulezet.