Threat landscape
high

MISP: Mehrere Schwachstellen

WID-SEC-2026-3173 · first 04.09.2026 · updated 07.09.2026 · CVSS 10,0

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What it is about

MISP ist eine Open-Source-Plattform für den Informationsaustausch über Bedrohungen. Ein Angreifer kann mehrere Schwachstellen in MISP ausnutzen, um Sicherheitsmechanismen zu umgehen, Informationen offenzulegen, Daten oder Sitzungen zu manipulieren und die Verfügbarkeit zu beeinträchtigen.

Under what conditions?

The BSI does not name any particular preconditions. Exploitable remotely according to the BSI.

What can happen in the worst case

An attacker could use the vulnerability to

  • Sicherheitsmechanismen zu umgehen
  • Informationen offenzulegen
  • Daten oder Sitzungen zu manipulieren
  • die Verfügbarkeit zu beeinträchtigen

Am I affected?

Affected according to the BSI:

  • Open Source MISP <2.5.46

The installed version is usually shown under “Help → About” or in the device’s admin interface.

What helps?

Update to at least:

  • Open Source MISP 2.5.46

Is the vulnerability already being exploited?

None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.

Information and sources

CVE: CVE-2026-85216, CVE-2026-85221, CVE-2026-85226, CVE-2026-85227, CVE-2026-85230, CVE-2026-85236, CVE-2026-85237, CVE-2026-85238, CVE-2026-85239, CVE-2026-85533, CVE-2026-85538, CVE-2026-85546, CVE-2026-85547

Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.

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