Threat landscape
high

Rsync: Mehrere Schwachstellen

WID-SEC-2026-1611 · first 20.05.2026 · updated 05.10.2026 · CVSS 8,8

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What it is about

Rsync ist ein Tool, um Dateien und Verzeichnisse zu synchronisieren. Ein Angreifer kann mehrere Schwachstellen in Rsync ausnutzen, um seine Privilegien zu erhöhen, um Informationen offenzulegen, um Sicherheitsvorkehrungen zu umgehen, und um einen Denial of Service Angriff durchzuführen.

Under what conditions?

The BSI does not name any particular preconditions.

What can happen in the worst case

An attacker could use the vulnerability to

  • seine Privilegien zu erhöhen
  • Informationen offenzulegen
  • Sicherheitsvorkehrungen zu umgehen
  • einen Denial of Service Angriff durchzuführen

Am I affected?

Affected according to the BSI:

  • Dell NetWorker
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Fedora Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • RESF Rocky Linux
  • Gentoo Linux
  • Dell Avamar

and 6 more

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

What helps?

Update to at least:

  • Open Source Rsync 3.4.3
  • Dell Secure Connect Gateway 5.36.00.16

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

and 25 more sources in the original advisory

CVE: CVE-2026-29518, CVE-2026-43617, CVE-2026-43618, CVE-2026-43619, CVE-2026-43620, CVE-2026-45232

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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