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Apache Struts: Mehrere Schwachstellen

WID-SEC-2026-2848 · first 14.08.2026 · updated 22.09.2026 · CVSS 7,5

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What it is about

Struts ist ein Framework für Java-Anwendungen auf dem Webserver Apache. Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Apache Struts ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Daten offenzulegen und zu manipulieren oder um einen Denial of Service zu verursachen.

Under what conditions?

Over the network and without logging in. This is the most dangerous combination: attackers can scan reachable devices automatically.

What can happen in the worst case

An attacker could use the vulnerability to

  • Sicherheitsmaßnahmen zu umgehen
  • Daten offenzulegen und zu manipulieren oder um einen Denial of Service zu verursachen

Am I affected?

Affected according to the BSI:

  • IBM Tivoli Netcool/OMNIbus
  • IBM Tivoli Network Manager IP Edition
  • Apache Struts <7.3.0
  • Apache Struts <6.11.0

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

What helps?

Update to at least:

  • Apache Struts 7.3.0
  • Apache Struts 6.11.0

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-2026-73631, CVE-2026-73632, CVE-2026-73633, CVE-2026-73634, CVE-2026-73635

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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