CVE-2026-59293

SMB minimum protocol dialect defaults to SMB1

State: Published
Severity: 6.6 Medium
Published: Aug 27, 2026
Updated: Aug 28, 2026
Reserved: Jul 4, 2026

Description

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

Scores

CVSS	Score	Vector	Source
3.1	6.6 Medium	CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H	vmware

Weaknesses

CWE-757 Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

Affected Products

Product	Versions
Spring IntegrationSpring	7.1.0Affected 7.0.0 through 7.0.5Affected 6.5.0 through 6.5.10Affected 6.4.0 through 6.4.12Affected

References

https://spring.io/security/cve-2026-59293

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.