What is CVE-2026-59293?

CVE-2026-59293 is a medium-severity vulnerability in Spring Integration, classified under CWE-757 SELECTION OF LESS-SECURE ALGORITHM DURING NEGOTIATION ('ALGORITHM DOWNGRADE'). CVSS score: 6.6/10. Published 2026-08-27.

How severe is CVE-2026-59293?

Medium severity. CVSS v3 base score is 6.6 out of 10.

Vulnerability in Spring Integration

CVE-2026-59293

Unless the application explicitly raises smbMinVersion, the jCIFS client will negotiate down to SMB1/CIFS, which lacks mandatory signing/encryption and is vulnerable to NTLM relay and content-tampering MITM. Spring Integration 7.1.0 Spring Integration 7.0.0 - 7.0.5 Spring Integration 6.5.0 - 6.5.10 Spring Integration 6.4.0 - 6.4.12

CVSS v3 metric

CVSS v3 base score 6.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Spring Integration — versions 7.1.0

References

security@vmware.com

Frequently asked questions

What is CVE-2026-59293?: CVE-2026-59293 is a medium-severity vulnerability in Spring Integration, classified under CWE-757 SELECTION OF LESS-SECURE ALGORITHM DURING NEGOTIATION ('ALGORITHM DOWNGRADE'). CVSS score: 6.6/10. Published 2026-08-27.
How severe is CVE-2026-59293?: Medium severity. CVSS v3 base score is 6.6 out of 10.