FasterXML Jackson: Mehrere Schwachstellen ermöglichen Denial of Service
WID-SEC-2026-3702 · first 02.10.2026 · updated 02.10.2026 · CVSS 7,5
What it is about
Jackson ist eine quelloffene Bibliothek zur JSON-Verarbeitung in Java. Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in FasterXML Jackson ausnutzen, um einen Denial of Service Angriff durchzuführen.
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
- einen Denial of Service Angriff durchzuführen
Am I affected?
Affected according to the BSI:
- FasterXML Jackson <2.18.10
- FasterXML Jackson <2.21.6
- FasterXML Jackson <2.22.2
- FasterXML Jackson <3.1.6
- FasterXML Jackson <3.2.2
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- FasterXML Jackson 2.18.10
- FasterXML Jackson 2.21.6
- FasterXML Jackson 2.22.2
- FasterXML Jackson 3.1.6
- FasterXML Jackson 3.2.2
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
- Original BSI advisory (WID)
- GitHub Advisory Database vom 2026-10-01 github.com
- GitHub Advisory Database vom 2026-10-01 github.com
CVE: CVE-2026-68495, CVE-2026-68496
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.