Vulnerability in Spring Framework

[ Description ]Official description

In an untrusted JMS environment, org.springframework.jms.support.converter.MappingJackson2MessageConverter and org.springframework.jms.support.converter.JacksonJsonMessageConverter allow arbitrary class instantiation, which can lead to unauthorized actions via gadget class deserialization. Affected versions: Spring Framework 7.0.0 through 7.0.7; 6.2.0 through 6.2.18; 6.1.0 through 6.1.27; 5.3.0 through 5.3.48.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• NCSC-NL22 Oct 2026NCSC-2026-0448

  Vulnerabilities fixed in Oracle Fusion Middleware Translated from Dutch

  Probability/damage H/HCVE-2026-54513CVE-2026-56741CVE-2026-59649+191 more CVEs
• NCSC-NL21 Oct 2026NCSC-2026-0444

  Vulnerabilities fixed in Oracle Communications Translated from Dutch

  Probability/damage M/HCVE-2025-48734CVE-2026-5450CVE-2026-6653+28 more CVEs
• CERT-FR21 Oct 2026CERTFR-2026-AVI-1355

  Multiple vulnerabilities in Oracle Weblogic Translated from French

  Multiple vulnerabilities have been discovered in Oracle Weblogic. They allow an attacker to cause remote denial of service, a breach of data confidentiality and a breach of data integrity.

  CVE-2026-41855CVE-2026-59645CVE-2026-41853+26 more CVEs
• BSI CERT-Bund20 Oct 2026WID-SEC-2026-4090

  Oracle Communications: Multiple vulnerabilities Translated from German

  Risk highCVE-2026-101763CVE-2026-58389CVE-2026-56740+85 more CVEs
• BSI CERT-Bund20 Oct 2026WID-SEC-2026-4089

  Oracle Construction and Engineering: Multiple vulnerabilities Translated from German

  Risk highCVE-2026-101736CVE-2026-91399CVE-2026-49844+9 more CVEs
• BSI CERT-Bund20 Oct 2026WID-SEC-2026-4086

  Oracle Financial Services Applications: Multiple vulnerabilities Translated from German

  Risk highCVE-2026-68497CVE-2026-41855CVE-2026-49844
• BSI CERT-Bund20 Oct 2026WID-SEC-2026-4083

  Oracle Retail Applications: Multiple vulnerabilities Translated from German

  Risk highCVE-2026-34481CVE-2026-41855CVE-2026-59901+1 more CVEs
• BSI CERT-Bund20 Oct 2026WID-SEC-2026-4078

  Oracle Fusion Middleware: Multiple vulnerabilities Translated from German

  CVE-2026-91212CVE-2023-43622CVE-2026-42779+191 more CVEs

[ References ]References

• spring.io/security/cve-2026-41855